php封装的smarty类完整实例

yskl · 发表于 2018-2-11 12:03:30

         本文实例讲述了php封装的smarty类。分享给大家供大家参考，具体如下：
* @author  Uwe Tews
* @author  Rodney Rehm
* @package  Smarty
* @version  3.1.19
*/
/**
* define shorthand directory separator constant
*/
if (!defined('DS')) {
  define('DS', DIRECTORY_SEPARATOR);
}
/**
* set SMARTY_DIR to absolute path to Smarty library files.
* Sets SMARTY_DIR only if user application has not already defined it.
*/
if (!defined('SMARTY_DIR')) {
  define('SMARTY_DIR', dirname(__FILE__) . DS);
}
/**
* set SMARTY_SYSPLUGINS_DIR to absolute path to Smarty internal plugins.
* Sets SMARTY_SYSPLUGINS_DIR only if user application has not already defined it.
*/
if (!defined('SMARTY_SYSPLUGINS_DIR')) {
  define('SMARTY_SYSPLUGINS_DIR', SMARTY_DIR . 'sysplugins' . DS);
}
if (!defined('SMARTY_PLUGINS_DIR')) {
  define('SMARTY_PLUGINS_DIR', SMARTY_DIR . 'plugins' . DS);
}
if (!defined('SMARTY_MBSTRING')) {
  define('SMARTY_MBSTRING', function_exists('mb_split'));
}
if (!defined('SMARTY_RESOURCE_CHAR_SET')) {
  // UTF-8 can only be done properly when mbstring is available!
  /**
* @deprecated in favor of Smarty:

_CHARSET
*/
define('SMARTY_RESOURCE_CHAR_SET', SMARTY_MBSTRING ? 'UTF-8' : 'ISO-8859-1');
}
if (!defined('SMARTY_RESOURCE_DATE_FORMAT')) {
/**
* @deprecated in favor of Smarty:

_DATE_FORMAT
*/
  define('SMARTY_RESOURCE_DATE_FORMAT', '%b %e, %Y');
}
/**
* register the class autoloader
*/
if (!defined('SMARTY_SPL_AUTOLOAD')) {
  define('SMARTY_SPL_AUTOLOAD', 0);
}
if (SMARTY_SPL_AUTOLOAD && set_include_path(get_include_path() . PATH_SEPARATOR . SMARTY_SYSPLUGINS_DIR) !== false) {
  $registeredAutoLoadFunctions = spl_autoload_functions();
  if (!isset($registeredAutoLoadFunctions['spl_autoload'])) {
spl_autoload_register();
  }
} else {
  spl_autoload_register('smartyAutoload');
}
/**
* Load always needed external class files
*/
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_data.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_templatebase.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_template.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_resource.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_resource_file.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_cacheresource.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_cacheresource_file.php';
/**
* This is the main Smarty class
*
* @package Smarty
*/
class Smarty extends Smarty_Internal_TemplateBase
{
  /**#@+
* constant definitions
*/
  /**
* smarty version
*/
  const SMARTY_VERSION = 'Smarty-3.1.19';
  /**
* define variable scopes
*/
  const SCOPE_LOCAL = 0;
  const SCOPE_PARENT = 1;
  const SCOPE_ROOT = 2;
  const SCOPE_GLOBAL = 3;
  /**
* define caching modes
*/
  const CACHING_OFF = 0;
  const CACHING_LIFETIME_CURRENT = 1;
  const CACHING_LIFETIME_SAVED = 2;
  /**
* define constant for clearing cache files be saved expiration datees
*/
  const CLEAR_EXPIRED = - 1;
  /**
* define compile check modes
*/
  const COMPILECHECK_OFF = 0;
  const COMPILECHECK_ON = 1;
  const COMPILECHECK_CACHEMISS = 2;
  /**
* modes for handling of "" tags in templates.
*/
  const PHP_PASSTHRU = 0; //-> print tags as plain text
  const PHP_QUOTE = 1; //-> escape tags as entities
  const PHP_REMOVE = 2; //-> escape tags as entities
  const PHP_ALLOW = 3; //-> escape tags as entities
  /**
* filter types
*/
  const FILTER_POST = 'post';
  const FILTER_PRE = 'pre';
  const FILTER_OUTPUT = 'output';
  const FILTER_VARIABLE = 'variable';
  /**
* plugin types
*/
  const PLUGIN_FUNCTION = 'function';
  const PLUGIN_BLOCK = 'block';
  const PLUGIN_COMPILER = 'compiler';
  const PLUGIN_MODIFIER = 'modifier';
  const PLUGIN_MODIFIERCOMPILER = 'modifiercompiler';
  /**#@-*/
  /**
* assigned global tpl vars
*/
  public static $global_tpl_vars = array();
  /**
* error handler returned by set_error_hanlder() in Smarty::muteExpectedErrors()
*/
  public static $_previous_error_handler = null;
  /**
* contains directories outside of SMARTY_DIR that are to be muted by muteExpectedErrors()
*/
  public static $_muted_directories = array();
  /**
* Flag denoting if Multibyte String functions are available
*/
  public static $_MBSTRING = SMARTY_MBSTRING;
  /**
* The character set to adhere to (e.g. "UTF-8")
*/
  public static $_CHARSET = SMARTY_RESOURCE_CHAR_SET;
  /**
* The date format to be used internally
* (accepts date() and strftime())
*/
  public static $_DATE_FORMAT = SMARTY_RESOURCE_DATE_FORMAT;
  /**
* Flag denoting if PCRE should run in UTF-8 mode
*/
  public static $_UTF8_MODIFIER = 'u';
  /**
* Flag denoting if operating system is windows
*/
  public static $_IS_WINDOWS = false;
  /**#@+
* variables
*/
  /**
* auto literal on delimiters with whitspace
*
* @var boolean
*/
  public $auto_literal = true;
  /**
* display error on not assigned variables
*
* @var boolean
*/
  public $error_unassigned = false;
  /**
* look up relative filepaths in include_path
*
* @var boolean
*/
  public $use_include_path = false;
  /**
* template directory
*
* @var array
*/
  private $template_dir = array();
  /**
* joined template directory string used in cache keys
*
* @var string
*/
  public $joined_template_dir = null;
  /**
* joined config directory string used in cache keys
*
* @var string
*/
  public $joined_config_dir = null;
  /**
* default template handler
*
* @var callable
*/
  public $default_template_handler_func = null;
  /**
* default config handler
*
* @var callable
*/
  public $default_config_handler_func = null;
  /**
* default plugin handler
*
* @var callable
*/
  public $default_plugin_handler_func = null;
  /**
* compile directory
*
* @var string
*/
  private $compile_dir = null;
  /**
* plugins directory
*
* @var array
*/
  private $plugins_dir = array();
  /**
* cache directory
*
* @var string
*/
  private $cache_dir = null;
  /**
* config directory
*
* @var array
*/
  private $config_dir = array();
  /**
* force template compiling?
*
* @var boolean
*/
  public $force_compile = false;
  /**
* check template for modifications?
*
* @var boolean
*/
  public $compile_check = true;
  /**
* use sub dirs for compiled/cached files?
*
* @var boolean
*/
  public $use_sub_dirs = false;
  /**
* allow ambiguous resources (that are made unique by the resource handler)
*
* @var boolean
*/
  public $allow_ambiguous_resources = false;
  /**
* caching enabled
*
* @var boolean
*/
  public $caching = false;
  /**
* merge compiled includes
*
* @var boolean
*/
  public $merge_compiled_includes = false;
  /**
* template inheritance merge compiled includes
*
* @var boolean
*/
  public $inheritance_merge_compiled_includes = true;
  /**
* cache lifetime in seconds
*
* @var integer
*/
  public $cache_lifetime = 3600;
  /**
* force cache file creation
*
* @var boolean
*/
  public $force_cache = false;
  /**
* Set this if you want different sets of cache files for the same
* templates.
*
* @var string
*/
  public $cache_id = null;
  /**
* Set this if you want different sets of compiled files for the same
* templates.
*
* @var string
*/
  public $compile_id = null;
  /**
* template left-delimiter
*
* @var string
*/
  public $left_delimiter = "{";
  /**
* template right-delimiter
*
* @var string
*/
  public $right_delimiter = "}";
  /**#@+
* security
*/
  /**
* class name
* This should be instance of Smarty_Security.
*
* @var string
* @see Smarty_Security
*/
  public $security_class = 'Smarty_Security';
  /**
* implementation of security class
*
* @var Smarty_Security
*/
  public $security_policy = null;
  /**
* controls handling of PHP-blocks
*
* @var integer
*/
  public $php_handling = self:

HP_PASSTHRU;
  /**
* controls if the php template file resource is allowed
*
* @var bool
*/
  public $allow_php_templates = false;
  /**
* Should compiled-templates be prevented from being called directly?
* {@internal
* Currently used by Smarty_Internal_Template only.
* }}
*
* @var boolean
*/
  public $direct_access_security = true;
  /**#@-*/
  /**
* debug mode
* Setting this to true enables the debug-console.
*
* @var boolean
*/
  public $debugging = false;
  /**
* This determines if debugging is enable-able from the browser.
*
*

NONE => no debugging control allowed
*

URL => enable debugging when SMARTY_DEBUG is found in the URL.
*
*
* @var string
*/
  public $debugging_ctrl = 'NONE';
  /**
* Name of debugging URL-param.
* Only used when $debugging_ctrl is set to 'URL'.
* The name of the URL-parameter that activates debugging.
*
* @var type
*/
  public $smarty_debug_id = 'SMARTY_DEBUG';
  /**
* Path of debug template.
*
* @var string
*/
  public $debug_tpl = null;
  /**
* When set, smarty uses this value as error_reporting-level.
*
* @var int
*/
  public $error_reporting = null;
  /**
* Internal flag for getTags()
*
* @var boolean
*/
  public $get_used_tags = false;
  /**#@+
* config var settings
*/
  /**
* Controls whether variables with the same name overwrite each other.
*
* @var boolean
*/
  public $config_overwrite = true;
  /**
* Controls whether config values of on/true/yes and off/false/no get converted to boolean.
*
* @var boolean
*/
  public $config_booleanize = true;
  /**
* Controls whether hidden config sections/vars are read from the file.
*
* @var boolean
*/
  public $config_read_hidden = false;
  /**#@-*/
  /**#@+
* resource locking
*/
  /**
* locking concurrent compiles
*
* @var boolean
*/
  public $compile_locking = true;
  /**
* Controls whether cache resources should emply locking mechanism
*
* @var boolean
*/
  public $cache_locking = false;
  /**
* seconds to wait for acquiring a lock before ignoring the write lock
*
* @var float
*/
  public $locking_timeout = 10;
  /**#@-*/
  /**
* global template functions
*
* @var array
*/
  public $template_functions = array();
  /**
* resource type used if none given
* Must be an valid key of $registered_resources.
*
* @var string
*/
  public $default_resource_type = 'file';
  /**
* caching type
* Must be an element of $cache_resource_types.
*
* @var string
*/
  public $caching_type = 'file';
  /**
* internal config properties
*
* @var array
*/
  public $properties = array();
  /**
* config type
*
* @var string
*/
  public $default_config_type = 'file';
  /**
* cached template objects
*
* @var array
*/
  public $template_objects = array();
  /**
* check If-Modified-Since headers
*
* @var boolean
*/
  public $cache_modified_check = false;
  /**
* registered plugins
*
* @var array
*/
  public $registered_plugins = array();
  /**
* plugin search order
*
* @var array
*/
  public $plugin_search_order = array('function', 'block', 'compiler', 'class');
  /**
* registered objects
*
* @var array
*/
  public $registered_objects = array();
  /**
* registered classes
*
* @var array
*/
  public $registered_classes = array();
  /**
* registered filters
*
* @var array
*/
  public $registered_filters = array();
  /**
* registered resources
*
* @var array
*/
  public $registered_resources = array();
  /**
* resource handler cache
*
* @var array
*/
  public $_resource_handlers = array();
  /**
* registered cache resources
*
* @var array
*/
  public $registered_cache_resources = array();
  /**
* cache resource handler cache
*
* @var array
*/
  public $_cacheresource_handlers = array();
  /**
* autoload filter
*
* @var array
*/
  public $autoload_filters = array();
  /**
* default modifier
*
* @var array
*/
  public $default_modifiers = array();
  /**
* autoescape variable output
*
* @var boolean
*/
  public $escape_html = false;
  /**
* global internal smarty vars
*
* @var array
*/
  public static $_smarty_vars = array();
  /**
* start time for execution time calculation
*
* @var int
*/
  public $start_time = 0;
  /**
* default file permissions
*
* @var int
*/
  public $_file_perms = 0644;
  /**
* default dir permissions
*
* @var int
*/
  public $_dir_perms = 0771;
  /**
* block tag hierarchy
*
* @var array
*/
  public $_tag_stack = array();
  /**
* self pointer to Smarty object
*
* @var Smarty
*/
  public $smarty;
  /**
* required by the compiler for BC
*
* @var string
*/
  public $_current_file = null;
  /**
* internal flag to enable parser debugging
*
* @var bool
*/
  public $_parserdebug = false;
  /**
* Saved parameter of merged templates during compilation
*
* @var array
*/
  public $merged_templates_func = array();
  /**#@-*/
  /**
* Initialize new Smarty object
*/
  public function __construct()
  {
// selfpointer needed by some other class methods
$this->smarty = $this;
if (is_callable('mb_internal_encoding')) {
   mb_internal_encoding(Smarty:

_CHARSET);
}
$this->start_time = microtime(true);
// set default dirs
$this->setTemplateDir('.' . DS . 'templates' . DS)
   ->setCompileDir('.' . DS . 'templates_c' . DS)
   ->setPluginsDir(SMARTY_PLUGINS_DIR)
   ->setCacheDir('.' . DS . 'cache' . DS)
   ->setConfigDir('.' . DS . 'configs' . DS);
$this->debug_tpl = 'file:' . dirname(__FILE__) . '/debug.tpl';
if (isset($_SERVER['SCRIPT_NAME'])) {
   $this->assignGlobal('SCRIPT_NAME', $_SERVER['SCRIPT_NAME']);
}
  }
  /**
* Class destructor
*/
  public function __destruct()
  {
// intentionally left blank
  }
  /**
* > set selfpointer on cloned object
*/
  public function __clone()
  {
$this->smarty = $this;
  }
  /**
* > Generic getter.
* Calls the appropriate getter function.
* Issues an E_USER_NOTICE if no valid getter is found.
*
* @param string $name property name
*
* @return mixed
*/
  public function __get($name)
  {
$allowed = array(
   'template_dir' => 'getTemplateDir',
   'config_dir'  => 'getConfigDir',
   'plugins_dir' => 'getPluginsDir',
   'compile_dir' => 'getCompileDir',
   'cache_dir'  => 'getCacheDir',
);
if (isset($allowed[$name])) {
   return $this->{$allowed[$name]}();
} else {
   trigger_error('Undefined property: ' . get_class($this) . ':

' . $name, E_USER_NOTICE);
}
  }
  /**
* > Generic setter.
* Calls the appropriate setter function.
* Issues an E_USER_NOTICE if no valid setter is found.
*
* @param string $name property name
* @param mixed $value parameter passed to setter
*/
  public function __set($name, $value)
  {
$allowed = array(
   'template_dir' => 'setTemplateDir',
   'config_dir'  => 'setConfigDir',
   'plugins_dir' => 'setPluginsDir',
   'compile_dir' => 'setCompileDir',
   'cache_dir'  => 'setCacheDir',
);
if (isset($allowed[$name])) {
   $this->{$allowed[$name]}($value);
} else {
   trigger_error('Undefined property: ' . get_class($this) . ':

' . $name, E_USER_NOTICE);
}
  }
  /**
* Check if a template resource exists
*
* @param string $resource_name template name
*
* @return boolean status
*/
  public function templateExists($resource_name)
  {
// create template object
$save = $this->template_objects;
$tpl = new $this->template_class($resource_name, $this);
// check if it does exists
$result = $tpl->source->exists;
$this->template_objects = $save;
return $result;
  }
  /**
* Returns a single or all global variables
*
* @param string $varname variable name or null
*
* @return string variable value or or array of variables
*/
  public function getGlobal($varname = null)
  {
if (isset($varname)) {
   if (isset(self:

global_tpl_vars[$varname])) {
return self:

global_tpl_vars[$varname]->value;
   } else {
      return '';
   }
} else {
   $_result = array();
   foreach (self:

global_tpl_vars AS $key => $var) {
      $_result[$key] = $var->value;
   }
   return $_result;
}
  }
  /**
* Empty cache folder
*
* @param integer $exp_time expiration time
* @param string $type resource type
*
* @return integer number of cache files deleted
*/
  public function clearAllCache($exp_time = null, $type = null)
  {
// load cache resource and call clearAll
$_cache_resource = Smarty_CacheResource::load($this, $type);
Smarty_CacheResource::invalidLoadedCache($this);
return $_cache_resource->clearAll($this, $exp_time);
  }
  /**
* Empty cache for a specific template
*
* @param string $template_name template name
* @param string $cache_id cache id
* @param string $compile_id  compile id
* @param integer $exp_time expiration time
* @param string $type    resource type
*
* @return integer number of cache files deleted
*/
  public function clearCache($template_name, $cache_id = null, $compile_id = null, $exp_time = null, $type = null)
  {
// load cache resource and call clear
$_cache_resource = Smarty_CacheResource::load($this, $type);
Smarty_CacheResource::invalidLoadedCache($this);
return $_cache_resource->clear($this, $template_name, $cache_id, $compile_id, $exp_time);
  }
  /**
* Loads security class and enables security
*
* @param string|Smarty_Security $security_class if a string is used, it must be class-name
*
* @return Smarty       current Smarty instance for chaining
* @throws SmartyException when an invalid class name is provided
*/
  public function enableSecurity($security_class = null)
  {
if ($security_class instanceof Smarty_Security) {
   $this->security_policy = $security_class;
   return $this;
} elseif (is_object($security_class)) {
   throw new SmartyException("Class '" . get_class($security_class) . "' must extend Smarty_Security.");
}
if ($security_class == null) {
   $security_class = $this->security_class;
}
if (!class_exists($security_class)) {
   throw new SmartyException("Security class '$security_class' is not defined");
} elseif ($security_class !== 'Smarty_Security' && !is_subclass_of($security_class, 'Smarty_Security')) {
   throw new SmartyException("Class '$security_class' must extend Smarty_Security.");
} else {
   $this->security_policy = new $security_class($this);
}
return $this;
  }
  /**
* Disable security
*
* @return Smarty current Smarty instance for chaining
*/
  public function disableSecurity()
  {
$this->security_policy = null;
return $this;
  }
  /**
* Set template directory
*
* @param string|array $template_dir directory(s) of template sources
*
* @return Smarty current Smarty instance for chaining
*/
  public function setTemplateDir($template_dir)
  {
$this->template_dir = array();
foreach ((array) $template_dir as $k => $v) {
   $this->template_dir[$k] = preg_replace('#(\w+)(/|\\\\){1,}#', '$1$2', rtrim($v, '/\\')) . DS;
}
$this->joined_template_dir = join(DIRECTORY_SEPARATOR, $this->template_dir);
return $this;
  }
  /**
* Add template directory(s)
*
* @param string|array $template_dir directory(s) of template sources
* @param string $key    of the array element to assign the template dir to
*
* @return Smarty    current Smarty instance for chaining
* @throws SmartyException when the given template directory is not valid
*/
  public function addTemplateDir($template_dir, $key = null)
  {
// make sure we're dealing with an array
$this->template_dir = (array) $this->template_dir;
if (is_array($template_dir)) {
   foreach ($template_dir as $k => $v) {
      $v = preg_replace('#(\w+)(/|\\\\){1,}#', '$1$2', rtrim($v, '/\\')) . DS;
      if (is_int($k)) {
      // indexes are not merged but appended
      $this->template_dir[] = $v;
      } else {
      // string indexes are overridden
      $this->template_dir[$k] = $v;
      }
   }
} else {
   $v = preg_replace('#(\w+)(/|\\\\){1,}#', '$1$2', rtrim($template_dir, '/\\')) . DS;
   if ($key !== null) {
      // override directory at specified index
      $this->template_dir[$key] = $v;
   } else {
      // append new directory
      $this->template_dir[] = $v;
   }
}
$this->joined_template_dir = join(DIRECTORY_SEPARATOR, $this->template_dir);
return $this;
  }
  /**
* Get template directories
*
* @param mixed $index index of directory to get, null to get all
*
* @return array|string list of template directories, or directory of $index
*/
  public function getTemplateDir($index = null)
  {
if ($index !== null) {
   return isset($this->template_dir[$index]) ? $this->template_dir[$index] : null;
}
return (array) $this->template_dir;
  }
  /**
* Set config directory
*
* @param $config_dir
*
* @return Smarty current Smarty instance for chaining
*/
  public function setConfigDir($config_dir)
  {
$this->config_dir = array();
foreach ((array) $config_dir as $k => $v) {
   $this->config_dir[$k] = preg_replace('#(\w+)(/|\\\\){1,}#', '$1$2', rtrim($v, '/\\')) . DS;
}
$this->joined_config_dir = join(DIRECTORY_SEPARATOR, $this->config_dir);
return $this;
  }
  /**
* Add config directory(s)
*
* @param string|array $config_dir directory(s) of config sources
* @param mixed $key key of the array element to assign the config dir to
*
* @return Smarty current Smarty instance for chaining
*/
  public function addConfigDir($config_dir, $key = null)
  {
// make sure we're dealing with an array
$this->config_dir = (array) $this->config_dir;
if (is_array($config_dir)) {
   foreach ($config_dir as $k => $v) {
      $v = preg_replace('#(\w+)(/|\\\\){1,}#', '$1$2', rtrim($v, '/\\')) . DS;
      if (is_int($k)) {
      // indexes are not merged but appended
      $this->config_dir[] = $v;
      } else {
      // string indexes are overridden
      $this->config_dir[$k] = $v;
      }
   }
} else {
   $v = preg_replace('#(\w+)(/|\\\\){1,}#', '$1$2', rtrim($config_dir, '/\\')) . DS;
   if ($key !== null) {
      // override directory at specified index
      $this->config_dir[$key] = rtrim($v, '/\\') . DS;
   } else {
      // append new directory
      $this->config_dir[] = rtrim($v, '/\\') . DS;
   }
}
$this->joined_config_dir = join(DIRECTORY_SEPARATOR, $this->config_dir);
return $this;
  }
  /**
* Get config directory
*
* @param mixed $index index of directory to get, null to get all
*
* @return array|string configuration directory
*/
  public function getConfigDir($index = null)
  {
if ($index !== null) {
   return isset($this->config_dir[$index]) ? $this->config_dir[$index] : null;
}
return (array) $this->config_dir;
  }
  /**
* Set plugins directory
*
* @param string|array $plugins_dir directory(s) of plugins
*
* @return Smarty current Smarty instance for chaining
*/
  public function setPluginsDir($plugins_dir)
  {
$this->plugins_dir = array();
foreach ((array) $plugins_dir as $k => $v) {
   $this->plugins_dir[$k] = rtrim($v, '/\\') . DS;
}
return $this;
  }
  /**
* Adds directory of plugin files
*
* @param $plugins_dir
*
* @return Smarty current Smarty instance for chaining
*/
  public function addPluginsDir($plugins_dir)
  {
// make sure we're dealing with an array
$this->plugins_dir = (array) $this->plugins_dir;
if (is_array($plugins_dir)) {
   foreach ($plugins_dir as $k => $v) {
      if (is_int($k)) {
      // indexes are not merged but appended
      $this->plugins_dir[] = rtrim($v, '/\\') . DS;
      } else {
      // string indexes are overridden
      $this->plugins_dir[$k] = rtrim($v, '/\\') . DS;
      }
   }
} else {
   // append new directory
   $this->plugins_dir[] = rtrim($plugins_dir, '/\\') . DS;
}
$this->plugins_dir = array_unique($this->plugins_dir);
return $this;
  }
  /**
* Get plugin directories
*
* @return array list of plugin directories
*/
  public function getPluginsDir()
  {
return (array) $this->plugins_dir;
  }
  /**
* Set compile directory
*
* @param string $compile_dir directory to store compiled templates in
*
* @return Smarty current Smarty instance for chaining
*/
  public function setCompileDir($compile_dir)
  {
$this->compile_dir = rtrim($compile_dir, '/\\') . DS;
if (!isset(Smarty:

_muted_directories[$this->compile_dir])) {
Smarty:

_muted_directories[$this->compile_dir] = null;
}
return $this;
  }
  /**
* Get compiled directory
*
* @return string path to compiled templates
*/
  public function getCompileDir()
  {
return $this->compile_dir;
  }
  /**
* Set cache directory
*
* @param string $cache_dir directory to store cached templates in
*
* @return Smarty current Smarty instance for chaining
*/
  public function setCacheDir($cache_dir)
  {
$this->cache_dir = rtrim($cache_dir, '/\\') . DS;
if (!isset(Smarty::$_muted_directories[$this->cache_dir])) {
   Smarty::$_muted_directories[$this->cache_dir] = null;
}
return $this;
  }
  /**
* Get cache directory
*
* @return string path of cache directory
*/
  public function getCacheDir()
  {
return $this->cache_dir;
  }
  /**
* Set default modifiers
*
* @param array|string $modifiers modifier or list of modifiers to set
*
* @return Smarty current Smarty instance for chaining
*/
  public function setDefaultModifiers($modifiers)
  {
$this->default_modifiers = (array) $modifiers;
return $this;
  }
  /**
* Add default modifiers
*
* @param array|string $modifiers modifier or list of modifiers to add
*
* @return Smarty current Smarty instance for chaining
*/
  public function addDefaultModifiers($modifiers)
  {
if (is_array($modifiers)) {
   $this->default_modifiers = array_merge($this->default_modifiers, $modifiers);
} else {
   $this->default_modifiers[] = $modifiers;
}
return $this;
  }
  /**
* Get default modifiers
*
* @return array list of default modifiers
*/
  public function getDefaultModifiers()
  {
return $this->default_modifiers;
  }
  /**
* Set autoload filters
*
* @param array $filters filters to load automatically
* @param string $type  "pre", "output", … specify the filter type to set. Defaults to none treating $filters' keys as the appropriate types
*
* @return Smarty current Smarty instance for chaining
*/
  public function setAutoloadFilters($filters, $type = null)
  {
if ($type !== null) {
   $this->autoload_filters[$type] = (array) $filters;
} else {
   $this->autoload_filters = (array) $filters;
}
return $this;
  }
  /**
* Add autoload filters
*
* @param array $filters filters to load automatically
* @param string $type  "pre", "output", … specify the filter type to set. Defaults to none treating $filters' keys as the appropriate types
*
* @return Smarty current Smarty instance for chaining
*/
  public function addAutoloadFilters($filters, $type = null)
  {
if ($type !== null) {
   if (!empty($this->autoload_filters[$type])) {
      $this->autoload_filters[$type] = array_merge($this->autoload_filters[$type], (array) $filters);
   } else {
      $this->autoload_filters[$type] = (array) $filters;
   }
} else {
   foreach ((array) $filters as $key => $value) {
      if (!empty($this->autoload_filters[$key])) {
      $this->autoload_filters[$key] = array_merge($this->autoload_filters[$key], (array) $value);
      } else {
      $this->autoload_filters[$key] = (array) $value;
      }
   }
}
return $this;
  }
  /**
* Get autoload filters
*
* @param string $type type of filter to get autoloads for. Defaults to all autoload filters
*
* @return array array( 'type1' => array( 'filter1', 'filter2', … ) ) or array( 'filter1', 'filter2', …) if $type was specified
*/
  public function getAutoloadFilters($type = null)
  {
if ($type !== null) {
   return isset($this->autoload_filters[$type]) ? $this->autoload_filters[$type] : array();
}
return $this->autoload_filters;
  }
  /**
* return name of debugging template
*
* @return string
*/
  public function getDebugTemplate()
  {
return $this->debug_tpl;
  }
  /**
* set the debug template
*
* @param string $tpl_name
*
* @return Smarty    current Smarty instance for chaining
* @throws SmartyException if file is not readable
*/
  public function setDebugTemplate($tpl_name)
  {
if (!is_readable($tpl_name)) {
   throw new SmartyException("Unknown file '{$tpl_name}'");
}
$this->debug_tpl = $tpl_name;
return $this;
  }
  /**
* creates a template object
*
* @param string $template  the resource handle of the template file
* @param mixed  $cache_id  cache id to be used with this template
* @param mixed  $compile_id compile id to be used with this template
* @param object $parent next higher level of Smarty variables
* @param boolean $do_clone  flag is Smarty object shall be cloned
*
* @return object template object
*/
  public function createTemplate($template, $cache_id = null, $compile_id = null, $parent = null, $do_clone = true)
  {
if ($cache_id !== null && (is_object($cache_id) || is_array($cache_id))) {
   $parent = $cache_id;
   $cache_id = null;
}
if ($parent !== null && is_array($parent)) {
   $data = $parent;
   $parent = null;
} else {
   $data = null;
}
// default to cache_id and compile_id of Smarty object
$cache_id = $cache_id === null ? $this->cache_id : $cache_id;
$compile_id = $compile_id === null ? $this->compile_id : $compile_id;
// already in template cache?
if ($this->allow_ambiguous_resources) {
   $_templateId = Smarty_Resource::getUniqueTemplateName($this, $template) . $cache_id . $compile_id;
} else {
   $_templateId = $this->joined_template_dir . '#' . $template . $cache_id . $compile_id;
}
if (isset($_templateId[150])) {
   $_templateId = sha1($_templateId);
}
if ($do_clone) {
   if (isset($this->template_objects[$_templateId])) {
      // return cached template object
      $tpl = clone $this->template_objects[$_templateId];
      $tpl->smarty = clone $tpl->smarty;
      $tpl->parent = $parent;
      $tpl->tpl_vars = array();
      $tpl->config_vars = array();
   } else {
      $tpl = new $this->template_class($template, clone $this, $parent, $cache_id, $compile_id);
   }
} else {
   if (isset($this->template_objects[$_templateId])) {
      // return cached template object
      $tpl = $this->template_objects[$_templateId];
      $tpl->parent = $parent;
      $tpl->tpl_vars = array();
      $tpl->config_vars = array();
   } else {
      $tpl = new $this->template_class($template, $this, $parent, $cache_id, $compile_id);
   }
}
// fill data if present
if (!empty($data) && is_array($data)) {
   // set up variable values
   foreach ($data as $_key => $_val) {
      $tpl->tpl_vars[$_key] = new Smarty_variable($_val);
   }
}
return $tpl;
  }
  /**
* Takes unknown classes and loads plugin files for them
* class name format: Smarty_PluginType_PluginName
* plugin filename format: plugintype.pluginname.php
*
* @param string $plugin_name class plugin name to load
* @param bool  $check check if already loaded
*
* @throws SmartyException
* @return string |boolean filepath of loaded file or false
*/
  public function loadPlugin($plugin_name, $check = true)
  {
// if function or class exists, exit silently (already loaded)
if ($check && (is_callable($plugin_name) || class_exists($plugin_name, false))) {
   return true;
}
// Plugin name is expected to be: Smarty_[Type]_[Name]
$_name_parts = explode('_', $plugin_name, 3);
// class name must have three parts to be valid plugin
// count($_name_parts) getPluginsDir() as $_plugin_dir) {
   $names = array(
      $_plugin_dir . $_plugin_filename,
      $_plugin_dir . strtolower($_plugin_filename),
   );
   foreach ($names as $file) {
      if (file_exists($file)) {
      require_once($file);
      return $file;
      }
      if ($this->use_include_path && !preg_match('/^([\/\\\\]|[a-zA-Z]:[\/\\\\])/', $_plugin_dir)) {
      // try PHP include_path
      if ($_stream_resolve_include_path) {
         $file = stream_resolve_include_path($file);
      } else {
         $file = Smarty_Internal_Get_Include_Path::getIncludePath($file);
      }
      if ($file !== false) {
         require_once($file);
         return $file;
      }
      }
   }
}
// no plugin loaded
return false;
  }
  /**
* Compile all template files
*
* @param string $extension file extension
* @param bool  $force_compile force all to recompile
* @param int  $time_limit
* @param int  $max_errors
*
* @return integer number of template files recompiled
*/
  public function compileAllTemplates($extension = '.tpl', $force_compile = false, $time_limit = 0, $max_errors = null)
  {
return Smarty_Internal_Utility::compileAllTemplates($extension, $force_compile, $time_limit, $max_errors, $this);
  }
  /**
* Compile all config files
*
* @param string $extension file extension
* @param bool  $force_compile force all to recompile
* @param int  $time_limit
* @param int  $max_errors
*
* @return integer number of template files recompiled
*/
  public function compileAllConfig($extension = '.conf', $force_compile = false, $time_limit = 0, $max_errors = null)
  {
return Smarty_Internal_Utility::compileAllConfig($extension, $force_compile, $time_limit, $max_errors, $this);
  }
  /**
* Delete compiled template file
*
* @param string $resource_name template name
* @param string $compile_id  compile id
* @param integer $exp_time expiration time
*
* @return integer number of template files deleted
*/
  public function clearCompiledTemplate($resource_name = null, $compile_id = null, $exp_time = null)
  {
return Smarty_Internal_Utility::clearCompiledTemplate($resource_name, $compile_id, $exp_time, $this);
  }
  /**
* Return array of tag/attributes of all tags used by an template
*
* @param Smarty_Internal_Template $template
*
* @return array of tag/attributes
*/
  public function getTags(Smarty_Internal_Template $template)
  {
return Smarty_Internal_Utility::getTags($template);
  }
  /**
* Run installation test
*
* @param array $errors Array to write errors into, rather than outputting them
*
* @return boolean true if setup is fine, false if something is wrong
*/
  public function testInstall(&$errors = null)
  {
return Smarty_Internal_Utility::testInstall($this, $errors);
  }
  /**
* Error Handler to mute expected messages
*
* @link http://php.net/set_error_handler
*
* @param integer $errno Error level
* @param    $errstr
* @param    $errfile
* @param    $errline
* @param    $errcontext
*
* @return boolean
*/
  public static function mutingErrorHandler($errno, $errstr, $errfile, $errline, $errcontext)
  {
$_is_muted_directory = false;
// add the SMARTY_DIR to the list of muted directories
if (!isset(Smarty::$_muted_directories[SMARTY_DIR])) {
   $smarty_dir = realpath(SMARTY_DIR);
   if ($smarty_dir !== false) {
      Smarty::$_muted_directories[SMARTY_DIR] = array(
      'file'  => $smarty_dir,
      'length' => strlen($smarty_dir),
      );
   }
}
// walk the muted directories and test against $errfile
foreach (Smarty::$_muted_directories as $key => &$dir) {
   if (!$dir) {
      // resolve directory and length for speedy comparisons
      $file = realpath($key);
      if ($file === false) {
      // this directory does not exist, remove and skip it
      unset(Smarty::$_muted_directories[$key]);
      continue;
      }
      $dir = array(
      'file'  => $file,
      'length' => strlen($file),
      );
   }
   if (!strncmp($errfile, $dir['file'], $dir['length'])) {
      $_is_muted_directory = true;
      break;
   }
}
// pass to next error handler if this error did not occur inside SMARTY_DIR
// or the error was within smarty but masked to be ignored
if (!$_is_muted_directory || ($errno && $errno & error_reporting())) {
   if (Smarty::$_previous_error_handler) {
      return call_user_func(Smarty::$_previous_error_handler, $errno, $errstr, $errfile, $errline, $errcontext);
   } else {
      return false;
   }
}
  }
  /**
* Enable error handler to mute expected messages
*
* @return void
*/
  public static function muteExpectedErrors()
  {
/*
   error muting is done because some people implemented custom error_handlers using
   http://php.net/set_error_handler and for some reason did not understand the following paragraph:
      It is important to remember that the standard PHP error handler is completely bypassed for the
      error types specified by error_types unless the callback function returns FALSE.
      error_reporting() settings will have no effect and your error handler will be called regardless -
      however you are still able to read the current value of error_reporting and act appropriately.
      Of particular note is that this value will be 0 if the statement that caused the error was
      prepended by the @ error-control operator.
   Smarty deliberately uses @filemtime() over file_exists() and filemtime() in some places. Reasons include
      - @filemtime() is almost twice as fast as using an additional file_exists()
      - between file_exists() and filemtime() a possible race condition is opened,
      which does not exist using the simple @filemtime() approach.
*/
$error_handler = array('Smarty', 'mutingErrorHandler');
$previous = set_error_handler($error_handler);
// avoid dead loops
if ($previous !== $error_handler) {
   Smarty::$_previous_error_handler = $previous;
}
  }
  /**
* Disable error handler muting expected messages
*
* @return void
*/
  public static function unmuteExpectedErrors()
  {
restore_error_handler();
  }
}
// Check if we're running on windows
Smarty::$_IS_WINDOWS = strtoupper(substr(PHP_OS, 0, 3)) === 'WIN';
// let PCRE (preg_*) treat strings as ISO-8859-1 if we're not dealing with UTF-8
if (Smarty::$_CHARSET !== 'UTF-8') {
  Smarty::$_UTF8_MODIFIER = '';
}
/**
* Smarty exception class
*
* @package Smarty
*/
class SmartyException extends Exception
{
  public static $escape = false;
  public function __toString()
  {
return ' --> Smarty: ' . (self::$escape ? htmlentities($this->message) : $this->message) . '  Smarty Compiler: ' . $this->message . '  true,
'smarty_config_compiled'    => true,
'smarty_security'       => true,
'smarty_cacheresource'       => true,
'smarty_cacheresource_custom' => true,
'smarty_cacheresource_keyvaluestore' => true,
'smarty_resource'       => true,
'smarty_resource_custom'    => true,
'smarty_resource_uncompiled'    => true,
'smarty_resource_recompiled'    => true,
  );
  if (!strncmp($_class, 'smarty_internal_', 16) || isset($_classes[$_class])) {
include SMARTY_SYSPLUGINS_DIR . $_class . '.php';
  }
}
* @author  Uwe Tews
* @author  Rodney Rehm
* @package  Smarty
* @version  3.1.19
*/
/**
* define shorthand directory separator constant
*/
if (!defined('DS')) {
  define('DS', DIRECTORY_SEPARATOR);
}
/**
* set SMARTY_DIR to absolute path to Smarty library files.
* Sets SMARTY_DIR only if user application has not already defined it.
*/
if (!defined('SMARTY_DIR')) {
  define('SMARTY_DIR', dirname(__FILE__) . DS);
}
/**
* set SMARTY_SYSPLUGINS_DIR to absolute path to Smarty internal plugins.
* Sets SMARTY_SYSPLUGINS_DIR only if user application has not already defined it.
*/
if (!defined('SMARTY_SYSPLUGINS_DIR')) {
  define('SMARTY_SYSPLUGINS_DIR', SMARTY_DIR . 'sysplugins' . DS);
}
if (!defined('SMARTY_PLUGINS_DIR')) {
  define('SMARTY_PLUGINS_DIR', SMARTY_DIR . 'plugins' . DS);
}
if (!defined('SMARTY_MBSTRING')) {
  define('SMARTY_MBSTRING', function_exists('mb_split'));
}
if (!defined('SMARTY_RESOURCE_CHAR_SET')) {
  // UTF-8 can only be done properly when mbstring is available!
  /**
* @deprecated in favor of Smarty::$_CHARSET
*/
  define('SMARTY_RESOURCE_CHAR_SET', SMARTY_MBSTRING ? 'UTF-8' : 'ISO-8859-1');
}
if (!defined('SMARTY_RESOURCE_DATE_FORMAT')) {
  /**
* @deprecated in favor of Smarty::$_DATE_FORMAT
*/
  define('SMARTY_RESOURCE_DATE_FORMAT', '%b %e, %Y');
}
/**
* register the class autoloader
*/
if (!defined('SMARTY_SPL_AUTOLOAD')) {
  define('SMARTY_SPL_AUTOLOAD', 0);
}
if (SMARTY_SPL_AUTOLOAD && set_include_path(get_include_path() . PATH_SEPARATOR . SMARTY_SYSPLUGINS_DIR) !== false) {
  $registeredAutoLoadFunctions = spl_autoload_functions();
  if (!isset($registeredAutoLoadFunctions['spl_autoload'])) {
spl_autoload_register();
  }
} else {
  spl_autoload_register('smartyAutoload');
}
/**
* Load always needed external class files
*/
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_data.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_templatebase.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_template.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_resource.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_resource_file.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_cacheresource.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_cacheresource_file.php';
/**
* This is the main Smarty class
*
* @package Smarty
*/
class Smarty extends Smarty_Internal_TemplateBase
{
  /**#@+
* constant definitions
*/
  /**
* smarty version
*/
  const SMARTY_VERSION = 'Smarty-3.1.19';
  /**
* define variable scopes
*/
  const SCOPE_LOCAL = 0;
  const SCOPE_PARENT = 1;
  const SCOPE_ROOT = 2;
  const SCOPE_GLOBAL = 3;
  /**
* define caching modes
*/
  const CACHING_OFF = 0;
  const CACHING_LIFETIME_CURRENT = 1;
  const CACHING_LIFETIME_SAVED = 2;
  /**
* define constant for clearing cache files be saved expiration datees
*/
  const CLEAR_EXPIRED = - 1;
  /**
* define compile check modes
*/
  const COMPILECHECK_OFF = 0;
  const COMPILECHECK_ON = 1;
  const COMPILECHECK_CACHEMISS = 2;
  /**
* modes for handling of "" tags in templates.
*/
  const PHP_PASSTHRU = 0; //-> print tags as plain text
  const PHP_QUOTE = 1; //-> escape tags as entities
  const PHP_REMOVE = 2; //-> escape tags as entities
  const PHP_ALLOW = 3; //-> escape tags as entities
  /**
* filter types
*/
  const FILTER_POST = 'post';
  const FILTER_PRE = 'pre';
  const FILTER_OUTPUT = 'output';
  const FILTER_VARIABLE = 'variable';
  /**
* plugin types
*/
  const PLUGIN_FUNCTION = 'function';
  const PLUGIN_BLOCK = 'block';
  const PLUGIN_COMPILER = 'compiler';
  const PLUGIN_MODIFIER = 'modifier';
  const PLUGIN_MODIFIERCOMPILER = 'modifiercompiler';
  /**#@-*/
  /**
* assigned global tpl vars
*/
  public static $global_tpl_vars = array();
  /**
* error handler returned by set_error_hanlder() in Smarty::muteExpectedErrors()
*/
  public static $_previous_error_handler = null;
  /**
* contains directories outside of SMARTY_DIR that are to be muted by muteExpectedErrors()
*/
  public static $_muted_directories = array();
  /**
* Flag denoting if Multibyte String functions are available
*/
  public static $_MBSTRING = SMARTY_MBSTRING;
  /**
* The character set to adhere to (e.g. "UTF-8")
*/
  public static $_CHARSET = SMARTY_RESOURCE_CHAR_SET;
  /**
* The date format to be used internally
* (accepts date() and strftime())
*/
  public static $_DATE_FORMAT = SMARTY_RESOURCE_DATE_FORMAT;
  /**
* Flag denoting if PCRE should run in UTF-8 mode
*/
  public static $_UTF8_MODIFIER = 'u';
  /**
* Flag denoting if operating system is windows
*/
  public static $_IS_WINDOWS = false;
  /**#@+
* variables
*/
  /**
* auto literal on delimiters with whitspace
*
* @var boolean
*/
  public $auto_literal = true;
  /**
* display error on not assigned variables
*
* @var boolean
*/
  public $error_unassigned = false;
  /**
* look up relative filepaths in include_path
*
* @var boolean
*/
  public $use_include_path = false;
  /**
* template directory
*
* @var array
*/
  private $template_dir = array();
  /**
* joined template directory string used in cache keys
*
* @var string
*/
  public $joined_template_dir = null;
  /**
* joined config directory string used in cache keys
*
* @var string
*/
  public $joined_config_dir = null;
  /**
* default template handler
*
* @var callable
*/
  public $default_template_handler_func = null;
  /**
* default config handler
*
* @var callable
*/
  public $default_config_handler_func = null;
  /**
* default plugin handler
*
* @var callable
*/
  public $default_plugin_handler_func = null;
  /**
* compile directory
*
* @var string
*/
  private $compile_dir = null;
  /**
* plugins directory
*
* @var array
*/
  private $plugins_dir = array();
  /**
* cache directory
*
* @var string
*/
  private $cache_dir = null;
  /**
* config directory
*
* @var array
*/
  private $config_dir = array();
  /**
* force template compiling?
*
* @var boolean
*/
  public $force_compile = false;
  /**
* check template for modifications?
*
* @var boolean
*/
  public $compile_check = true;
  /**
* use sub dirs for compiled/cached files?
*
* @var boolean
*/
  public $use_sub_dirs = false;
  /**
* allow ambiguous resources (that are made unique by the resource handler)
*
* @var boolean
*/
  public $allow_ambiguous_resources = false;
  /**
* caching enabled
*
* @var boolean
*/
  public $caching = false;
  /**
* merge compiled includes
*
* @var boolean
*/
  public $merge_compiled_includes = false;
  /**
* template inheritance merge compiled includes
*
* @var boolean
*/
  public $inheritance_merge_compiled_includes = true;
  /**
* cache lifetime in seconds
*
* @var integer
*/
  public $cache_lifetime = 3600;
  /**
* force cache file creation
*
* @var boolean
*/
  public $force_cache = false;
  /**
* Set this if you want different sets of cache files for the same
* templates.
*
* @var string
*/
  public $cache_id = null;
  /**
* Set this if you want different sets of compiled files for the same
* templates.
*
* @var string
*/
  public $compile_id = null;
  /**
* template left-delimiter
*
* @var string
*/
  public $left_delimiter = "{";
  /**
* template right-delimiter
*
* @var string
*/
  public $right_delimiter = "}";
  /**#@+
* security
*/
  /**
* class name
* This should be instance of Smarty_Security.
*
* @var string
* @see Smarty_Security
*/
  public $security_class = 'Smarty_Security';
  /**
* implementation of security class
*
* @var Smarty_Security
*/
  public $security_policy = null;
  /**
* controls handling of PHP-blocks
*
* @var integer
*/
  public $php_handling = self:

HP_PASSTHRU;
  /**
* controls if the php template file resource is allowed
*
* @var bool
*/
  public $allow_php_templates = false;
  /**
* Should compiled-templates be prevented from being called directly?
* {@internal
* Currently used by Smarty_Internal_Template only.
* }}
*
* @var boolean
*/
  public $direct_access_security = true;
  /**#@-*/
  /**
* debug mode
* Setting this to true enables the debug-console.
*
* @var boolean
*/
  public $debugging = false;
  /**
* This determines if debugging is enable-able from the browser.
*
*

NONE => no debugging control allowed
*

URL => enable debugging when SMARTY_DEBUG is found in the URL.
*
*
* @var string
*/
  public $debugging_ctrl = 'NONE';
  /**
* Name of debugging URL-param.
* Only used when $debugging_ctrl is set to 'URL'.
* The name of the URL-parameter that activates debugging.
*
* @var type
*/
  public $smarty_debug_id = 'SMARTY_DEBUG';
  /**
* Path of debug template.
*
* @var string
*/
  public $debug_tpl = null;
  /**
* When set, smarty uses this value as error_reporting-level.
*
* @var int
*/
  public $error_reporting = null;
  /**
* Internal flag for getTags()
*
* @var boolean
*/
  public $get_used_tags = false;
  /**#@+
* config var settings
*/
  /**
* Controls whether variables with the same name overwrite each other.
*
* @var boolean
*/
  public $config_overwrite = true;
  /**
* Controls whether config values of on/true/yes and off/false/no get converted to boolean.
*
* @var boolean
*/
  public $config_booleanize = true;
  /**
* Controls whether hidden config sections/vars are read from the file.
*
* @var boolean
*/
  public $config_read_hidden = false;
  /**#@-*/
  /**#@+
* resource locking
*/
  /**
* locking concurrent compiles
*
* @var boolean
*/
  public $compile_locking = true;
  /**
* Controls whether cache resources should emply locking mechanism
*
* @var boolean
*/
  public $cache_locking = false;
  /**
* seconds to wait for acquiring a lock before ignoring the write lock
*
* @var float
*/
  public $locking_timeout = 10;
  /**#@-*/
  /**
* global template functions
*
* @var array
*/
  public $template_functions = array();
  /**
* resource type used if none given
* Must be an valid key of $registered_resources.
*
* @var string
*/
  public $default_resource_type = 'file';
  /**
* caching type
* Must be an element of $cache_resource_types.
*
* @var string
*/
  public $caching_type = 'file';
  /**
* internal config properties
*
* @var array
*/
  public $properties = array();
  /**
* config type
*
* @var string
*/
  public $default_config_type = 'file';
  /**
* cached template objects
*
* @var array
*/
  public $template_objects = array();
  /**
* check If-Modified-Since headers
*
* @var boolean
*/
  public $cache_modified_check = false;
  /**
* registered plugins
*
* @var array
*/
  public $registered_plugins = array();
  /**
* plugin search order
*
* @var array
*/
  public $plugin_search_order = array('function', 'block', 'compiler', 'class');
  /**
* registered objects
*
* @var array
*/
  public $registered_objects = array();
  /**
* registered classes
*
* @var array
*/
  public $registered_classes = array();
  /**
* registered filters
*
* @var array
*/
  public $registered_filters = array();
  /**
* registered resources
*
* @var array
*/
  public $registered_resources = array();
  /**
* resource handler cache
*
* @var array
*/
  public $_resource_handlers = array();
  /**
* registered cache resources
*
* @var array
*/
  public $registered_cache_resources = array();
  /**
* cache resource handler cache
*
* @var array
*/
  public $_cacheresource_handlers = array();
  /**
* autoload filter
*
* @var array
*/
  public $autoload_filters = array();
  /**
* default modifier
*
* @var array
*/
  public $default_modifiers = array();
  /**
* autoescape variable output
*
* @var boolean
*/
  public $escape_html = false;
  /**
* global internal smarty vars
*
* @var array
*/
  public static $_smarty_vars = array();
  /**
* start time for execution time calculation
*
* @var int
*/
  public $start_time = 0;
  /**
* default file permissions
*
* @var int
*/
  public $_file_perms = 0644;
  /**
* default dir permissions
*
* @var int
*/
  public $_dir_perms = 0771;
  /**
* block tag hierarchy
*
* @var array
*/
  public $_tag_stack = array();
  /**
* self pointer to Smarty object
*
* @var Smarty
*/
  public $smarty;
  /**
* required by the compiler for BC
*
* @var string
*/
  public $_current_file = null;
  /**
* internal flag to enable parser debugging
*
* @var bool
*/
  public $_parserdebug = false;
  /**
* Saved parameter of merged templates during compilation
*
* @var array
*/
  public $merged_templates_func = array();
  /**#@-*/
  /**
* Initialize new Smarty object
*/
  public function __construct()
  {
// selfpointer needed by some other class methods
$this->smarty = $this;
if (is_callable('mb_internal_encoding')) {
   mb_internal_encoding(Smarty::$_CHARSET);
}
$this->start_time = microtime(true);
// set default dirs
$this->setTemplateDir('.' . DS . 'templates' . DS)
   ->setCompileDir('.' . DS . 'templates_c' . DS)
   ->setPluginsDir(SMARTY_PLUGINS_DIR)
   ->setCacheDir('.' . DS . 'cache' . DS)
   ->setConfigDir('.' . DS . 'configs' . DS);
$this->debug_tpl = 'file:' . dirname(__FILE__) . '/debug.tpl';
if (isset($_SERVER['SCRIPT_NAME'])) {
   $this->assignGlobal('SCRIPT_NAME', $_SERVER['SCRIPT_NAME']);
}
  }
  /**
* Class destructor
*/
  public function __destruct()
  {
// intentionally left blank
  }
  /**
* > set selfpointer on cloned object
*/
  public function __clone()
  {
$this->smarty = $this;
  }
  /**
* > Generic getter.
* Calls the appropriate getter function.
* Issues an E_USER_NOTICE if no valid getter is found.
*
* @param string $name property name
*
* @return mixed
*/
  public function __get($name)
  {
$allowed = array(
   'template_dir' => 'getTemplateDir',
   'config_dir'  => 'getConfigDir',
   'plugins_dir' => 'getPluginsDir',
   'compile_dir' => 'getCompileDir',
   'cache_dir'  => 'getCacheDir',
);
if (isset($allowed[$name])) {
   return $this->{$allowed[$name]}();
} else {
   trigger_error('Undefined property: ' . get_class($this) . '::$' . $name, E_USER_NOTICE);
}
  }
  /**
* > Generic setter.
* Calls the appropriate setter function.
* Issues an E_USER_NOTICE if no valid setter is found.
*
* @param string $name property name
* @param mixed $value parameter passed to setter
*/
  public function __set($name, $value)
  {
$allowed = array(
   'template_dir' => 'setTemplateDir',
   'config_dir'  => 'setConfigDir',
   'plugins_dir' => 'setPluginsDir',
   'compile_dir' => 'setCompileDir',
   'cache_dir'  => 'setCacheDir',
);
if (isset($allowed[$name])) {
   $this->{$allowed[$name]}($value);
} else {
   trigger_error('Undefined property: ' . get_class($this) . '::$' . $name, E_USER_NOTICE);
}
  }
  /**
* Check if a template resource exists
*
* @param string $resource_name template name
*
* @return boolean status
*/
  public function templateExists($resource_name)
  {
// create template object
$save = $this->template_objects;
$tpl = new $this->template_class($resource_name, $this);
// check if it does exists
$result = $tpl->source->exists;
$this->template_objects = $save;
return $result;
  }
  /**
* Returns a single or all global variables
*
* @param string $varname variable name or null
*
* @return string variable value or or array of variables
*/
  public function getGlobal($varname = null)
  {
if (isset($varname)) {
   if (isset(self::$global_tpl_vars[$varname])) {
      return self::$global_tpl_vars[$varname]->value;
   } else {
      return '';
   }
} else {
   $_result = array();
   foreach (self::$global_tpl_vars AS $key => $var) {
      $_result[$key] = $var->value;
   }
   return $_result;
}
  }
  /**
* Empty cache folder
*
* @param integer $exp_time expiration time
* @param string $type resource type
*
* @return integer number of cache files deleted
*/
  public function clearAllCache($exp_time = null, $type = null)
  {
// load cache resource and call clearAll
$_cache_resource = Smarty_CacheResource::load($this, $type);
Smarty_CacheResource::invalidLoadedCache($this);
return $_cache_resource->clearAll($this, $exp_time);
  }
  /**
* Empty cache for a specific template
*
* @param string $template_name template name
* @param string $cache_id cache id
* @param string $compile_id  compile id
* @param integer $exp_time expiration time
* @param string $type    resource type
*
* @return integer number of cache files deleted
*/
  public function clearCache($template_name, $cache_id = null, $compile_id = null, $exp_time = null, $type = null)
  {
// load cache resource and call clear
$_cache_resource = Smarty_CacheResource::load($this, $type);
Smarty_CacheResource::invalidLoadedCache($this);
return $_cache_resource->clear($this, $template_name, $cache_id, $compile_id, $exp_time);
  }
  /**
* Loads security class and enables security
*
* @param string|Smarty_Security $security_class if a string is used, it must be class-name
*
* @return Smarty       current Smarty instance for chaining
* @throws SmartyException when an invalid class name is provided
*/
  public function enableSecurity($security_class = null)
  {
if ($security_class instanceof Smarty_Security) {
   $this->security_policy = $security_class;
   return $this;
} elseif (is_object($security_class)) {
   throw new SmartyException("Class '" . get_class($security_class) . "' must extend Smarty_Security.");
}
if ($security_class == null) {
   $security_class = $this->security_class;
}
if (!class_exists($security_class)) {
   throw new SmartyException("Security class '$security_class' is not defined");
} elseif ($security_class !== 'Smarty_Security' && !is_subclass_of($security_class, 'Smarty_Security')) {
   throw new SmartyException("Class '$security_class' must extend Smarty_Security.");
} else {
   $this->security_policy = new $security_class($this);
}
return $this;
  }
  /**
* Disable security
*
* @return Smarty current Smarty instance for chaining
*/
  public function disableSecurity()
  {
$this->security_policy = null;
return $this;
  }
  /**
* Set template directory
*
* @param string|array $template_dir directory(s) of template sources
*
* @return Smarty current Smarty instance for chaining
*/
  public function setTemplateDir($template_dir)
  {
$this->template_dir = array();
foreach ((array) $template_dir as $k => $v) {
   $this->template_dir[$k] = preg_replace('#(\w+)(/|\\\\){1,}#', '$1$2', rtrim($v, '/\\')) . DS;
}
$this->joined_template_dir = join(DIRECTORY_SEPARATOR, $this->template_dir);
return $this;
  }
  /**
* Add template directory(s)
*
* @param string|array $template_dir directory(s) of template sources
* @param string $key    of the array element to assign the template dir to
*
* @return Smarty    current Smarty instance for chaining
* @throws SmartyException when the given template directory is not valid
*/
  public function addTemplateDir($template_dir, $key = null)
  {
// make sure we're dealing with an array
$this->template_dir = (array) $this->template_dir;
if (is_array($template_dir)) {
   foreach ($template_dir as $k => $v) {
      $v = preg_replace('#(\w+)(/|\\\\){1,}#', '$1$2', rtrim($v, '/\\')) . DS;
      if (is_int($k)) {
      // indexes are not merged but appended
      $this->template_dir[] = $v;
      } else {
      // string indexes are overridden
      $this->template_dir[$k] = $v;
      }
   }
} else {
   $v = preg_replace('#(\w+)(/|\\\\){1,}#', '$1$2', rtrim($template_dir, '/\\')) . DS;
   if ($key !== null) {
      // override directory at specified index
      $this->template_dir[$key] = $v;
   } else {
      // append new directory
      $this->template_dir[] = $v;
   }
}
$this->joined_template_dir = join(DIRECTORY_SEPARATOR, $this->template_dir);
return $this;
  }
  /**
* Get template directories
*
* @param mixed $index index of directory to get, null to get all
*
* @return array|string list of template directories, or directory of $index
*/
  public function getTemplateDir($index = null)
  {
if ($index !== null) {
   return isset($this->template_dir[$index]) ? $this->template_dir[$index] : null;
}
return (array) $this->template_dir;
  }
  /**
* Set config directory
*
* @param $config_dir
*
* @return Smarty current Smarty instance for chaining
*/
  public function setConfigDir($config_dir)
  {
$this->config_dir = array();
foreach ((array) $config_dir as $k => $v) {
   $this->config_dir[$k] = preg_replace('#(\w+)(/|\\\\){1,}#', '$1$2', rtrim($v, '/\\')) . DS;
}
$this->joined_config_dir = join(DIRECTORY_SEPARATOR, $this->config_dir);
return $this;
  }
  /**
* Add config directory(s)
*
* @param string|array $config_dir directory(s) of config sources
* @param mixed $key key of the array element to assign the config dir to
*
* @return Smarty current Smarty instance for chaining
*/
  public function addConfigDir($config_dir, $key = null)
  {
// make sure we're dealing with an array
$this->config_dir = (array) $this->config_dir;
if (is_array($config_dir)) {
   foreach ($config_dir as $k => $v) {
      $v = preg_replace('#(\w+)(/|\\\\){1,}#', '$1$2', rtrim($v, '/\\')) . DS;
      if (is_int($k)) {
      // indexes are not merged but appended
      $this->config_dir[] = $v;
      } else {
      // string indexes are overridden
      $this->config_dir[$k] = $v;
      }
   }
} else {
   $v = preg_replace('#(\w+)(/|\\\\){1,}#', '$1$2', rtrim($config_dir, '/\\')) . DS;
   if ($key !== null) {
      // override directory at specified index
      $this->config_dir[$key] = rtrim($v, '/\\') . DS;
   } else {
      // append new directory
      $this->config_dir[] = rtrim($v, '/\\') . DS;
   }
}
$this->joined_config_dir = join(DIRECTORY_SEPARATOR, $this->config_dir);
return $this;
  }
  /**
* Get config directory
*
* @param mixed $index index of directory to get, null to get all
*
* @return array|string configuration directory
*/
  public function getConfigDir($index = null)
  {
if ($index !== null) {
   return isset($this->config_dir[$index]) ? $this->config_dir[$index] : null;
}
return (array) $this->config_dir;
  }
  /**
* Set plugins directory
*
* @param string|array $plugins_dir directory(s) of plugins
*
* @return Smarty current Smarty instance for chaining
*/
  public function setPluginsDir($plugins_dir)
  {
$this->plugins_dir = array();
foreach ((array) $plugins_dir as $k => $v) {
   $this->plugins_dir[$k] = rtrim($v, '/\\') . DS;
}
return $this;
  }
  /**
* Adds directory of plugin files
*
* @param $plugins_dir
*
* @return Smarty current Smarty instance for chaining
*/
  public function addPluginsDir($plugins_dir)
  {
// make sure we're dealing with an array
$this->plugins_dir = (array) $this->plugins_dir;
if (is_array($plugins_dir)) {
   foreach ($plugins_dir as $k => $v) {
      if (is_int($k)) {
      // indexes are not merged but appended
      $this->plugins_dir[] = rtrim($v, '/\\') . DS;
      } else {
      // string indexes are overridden
      $this->plugins_dir[$k] = rtrim($v, '/\\') . DS;
      }
   }
} else {
   // append new directory
   $this->plugins_dir[] = rtrim($plugins_dir, '/\\') . DS;
}
$this->plugins_dir = array_unique($this->plugins_dir);
return $this;
  }
  /**
* Get plugin directories
*
* @return array list of plugin directories
*/
  public function getPluginsDir()
  {
return (array) $this->plugins_dir;
  }
  /**
* Set compile directory
*
* @param string $compile_dir directory to store compiled templates in
*
* @return Smarty current Smarty instance for chaining
*/
  public function setCompileDir($compile_dir)
  {
$this->compile_dir = rtrim($compile_dir, '/\\') . DS;
if (!isset(Smarty::$_muted_directories[$this->compile_dir])) {
   Smarty::$_muted_directories[$this->compile_dir] = null;
}
return $this;
  }
  /**
* Get compiled directory
*
* @return string path to compiled templates
*/
  public function getCompileDir()
  {
return $this->compile_dir;
  }
  /**
* Set cache directory
*
* @param string $cache_dir directory to store cached templates in
*
* @return Smarty current Smarty instance for chaining
*/
  public function setCacheDir($cache_dir)
  {
$this->cache_dir = rtrim($cache_dir, '/\\') . DS;
if (!isset(Smarty::$_muted_directories[$this->cache_dir])) {
   Smarty::$_muted_directories[$this->cache_dir] = null;
}
return $this;
  }
  /**
* Get cache directory
*
* @return string path of cache directory
*/
  public function getCacheDir()
  {
return $this->cache_dir;
  }
  /**
* Set default modifiers
*
* @param array|string $modifiers modifier or list of modifiers to set
*
* @return Smarty current Smarty instance for chaining
*/
  public function setDefaultModifiers($modifiers)
  {
$this->default_modifiers = (array) $modifiers;
return $this;
  }
  /**
* Add default modifiers
*
* @param array|string $modifiers modifier or list of modifiers to add
*
* @return Smarty current Smarty instance for chaining
*/
  public function addDefaultModifiers($modifiers)
  {
if (is_array($modifiers)) {
   $this->default_modifiers = array_merge($this->default_modifiers, $modifiers);
} else {
   $this->default_modifiers[] = $modifiers;
}
return $this;
  }
  /**
* Get default modifiers
*
* @return array list of default modifiers
*/
  public function getDefaultModifiers()
  {
return $this->default_modifiers;
  }
  /**
* Set autoload filters
*
* @param array $filters filters to load automatically
* @param string $type  "pre", "output", … specify the filter type to set. Defaults to none treating $filters' keys as the appropriate types
*
* @return Smarty current Smarty instance for chaining
*/
  public function setAutoloadFilters($filters, $type = null)
  {
if ($type !== null) {
   $this->autoload_filters[$type] = (array) $filters;
} else {
   $this->autoload_filters = (array) $filters;
}
return $this;
  }
  /**
* Add autoload filters
*
* @param array $filters filters to load automatically
* @param string $type  "pre", "output", … specify the filter type to set. Defaults to none treating $filters' keys as the appropriate types
*
* @return Smarty current Smarty instance for chaining
*/
  public function addAutoloadFilters($filters, $type = null)
  {
if ($type !== null) {
   if (!empty($this->autoload_filters[$type])) {
      $this->autoload_filters[$type] = array_merge($this->autoload_filters[$type], (array) $filters);
   } else {
      $this->autoload_filters[$type] = (array) $filters;
   }
} else {
   foreach ((array) $filters as $key => $value) {
      if (!empty($this->autoload_filters[$key])) {
      $this->autoload_filters[$key] = array_merge($this->autoload_filters[$key], (array) $value);
      } else {
      $this->autoload_filters[$key] = (array) $value;
      }
   }
}
return $this;
  }
  /**
* Get autoload filters
*
* @param string $type type of filter to get autoloads for. Defaults to all autoload filters
*
* @return array array( 'type1' => array( 'filter1', 'filter2', … ) ) or array( 'filter1', 'filter2', …) if $type was specified
*/
  public function getAutoloadFilters($type = null)
  {
if ($type !== null) {
   return isset($this->autoload_filters[$type]) ? $this->autoload_filters[$type] : array();
}
return $this->autoload_filters;
  }
  /**
* return name of debugging template
*
* @return string
*/
  public function getDebugTemplate()
  {
return $this->debug_tpl;
  }
  /**
* set the debug template
*
* @param string $tpl_name
*
* @return Smarty    current Smarty instance for chaining
* @throws SmartyException if file is not readable
*/
  public function setDebugTemplate($tpl_name)
  {
if (!is_readable($tpl_name)) {
   throw new SmartyException("Unknown file '{$tpl_name}'");
}
$this->debug_tpl = $tpl_name;
return $this;
  }
  /**
* creates a template object
*
* @param string $template  the resource handle of the template file
* @param mixed  $cache_id  cache id to be used with this template
* @param mixed  $compile_id compile id to be used with this template
* @param object $parent next higher level of Smarty variables
* @param boolean $do_clone  flag is Smarty object shall be cloned
*
* @return object template object
*/
  public function createTemplate($template, $cache_id = null, $compile_id = null, $parent = null, $do_clone = true)
  {
if ($cache_id !== null && (is_object($cache_id) || is_array($cache_id))) {
   $parent = $cache_id;
   $cache_id = null;
}
if ($parent !== null && is_array($parent)) {
   $data = $parent;
   $parent = null;
} else {
   $data = null;
}
// default to cache_id and compile_id of Smarty object
$cache_id = $cache_id === null ? $this->cache_id : $cache_id;
$compile_id = $compile_id === null ? $this->compile_id : $compile_id;
// already in template cache?
if ($this->allow_ambiguous_resources) {
   $_templateId = Smarty_Resource::getUniqueTemplateName($this, $template) . $cache_id . $compile_id;
} else {
   $_templateId = $this->joined_template_dir . '#' . $template . $cache_id . $compile_id;
}
if (isset($_templateId[150])) {
   $_templateId = sha1($_templateId);
}
if ($do_clone) {
   if (isset($this->template_objects[$_templateId])) {
      // return cached template object
      $tpl = clone $this->template_objects[$_templateId];
      $tpl->smarty = clone $tpl->smarty;
      $tpl->parent = $parent;
      $tpl->tpl_vars = array();
      $tpl->config_vars = array();
   } else {
      $tpl = new $this->template_class($template, clone $this, $parent, $cache_id, $compile_id);
   }
} else {
   if (isset($this->template_objects[$_templateId])) {
      // return cached template object
      $tpl = $this->template_objects[$_templateId];
      $tpl->parent = $parent;
      $tpl->tpl_vars = array();
      $tpl->config_vars = array();
   } else {
      $tpl = new $this->template_class($template, $this, $parent, $cache_id, $compile_id);
   }
}
// fill data if present
if (!empty($data) && is_array($data)) {
   // set up variable values
   foreach ($data as $_key => $_val) {
      $tpl->tpl_vars[$_key] = new Smarty_variable($_val);
   }
}
return $tpl;
  }
  /**
* Takes unknown classes and loads plugin files for them
* class name format: Smarty_PluginType_PluginName
* plugin filename format: plugintype.pluginname.php
*
* @param string $plugin_name class plugin name to load
* @param bool  $check check if already loaded
*
* @throws SmartyException
* @return string |boolean filepath of loaded file or false
*/
  public function loadPlugin($plugin_name, $check = true)
  {
// if function or class exists, exit silently (already loaded)
if ($check && (is_callable($plugin_name) || class_exists($plugin_name, false))) {
   return true;
}
// Plugin name is expected to be: Smarty_[Type]_[Name]
$_name_parts = explode('_', $plugin_name, 3);
// class name must have three parts to be valid plugin
// count($_name_parts) getPluginsDir() as $_plugin_dir) {
   $names = array(
      $_plugin_dir . $_plugin_filename,
      $_plugin_dir . strtolower($_plugin_filename),
   );
   foreach ($names as $file) {
      if (file_exists($file)) {
      require_once($file);
      return $file;
      }
      if ($this->use_include_path && !preg_match('/^([\/\\\\]|[a-zA-Z]:[\/\\\\])/', $_plugin_dir)) {
      // try PHP include_path
      if ($_stream_resolve_include_path) {
         $file = stream_resolve_include_path($file);
      } else {
         $file = Smarty_Internal_Get_Include_Path::getIncludePath($file);
      }
      if ($file !== false) {
         require_once($file);
         return $file;
      }
      }
   }
}
// no plugin loaded
return false;
  }
  /**
* Compile all template files
*
* @param string $extension file extension
* @param bool  $force_compile force all to recompile
* @param int  $time_limit
* @param int  $max_errors
*
* @return integer number of template files recompiled
*/
  public function compileAllTemplates($extension = '.tpl', $force_compile = false, $time_limit = 0, $max_errors = null)
  {
return Smarty_Internal_Utility::compileAllTemplates($extension, $force_compile, $time_limit, $max_errors, $this);
  }
  /**
* Compile all config files
*
* @param string $extension file extension
* @param bool  $force_compile force all to recompile
* @param int  $time_limit
* @param int  $max_errors
*
* @return integer number of template files recompiled
*/
  public function compileAllConfig($extension = '.conf', $force_compile = false, $time_limit = 0, $max_errors = null)
  {
return Smarty_Internal_Utility::compileAllConfig($extension, $force_compile, $time_limit, $max_errors, $this);
  }
  /**
* Delete compiled template file
*
* @param string $resource_name template name
* @param string $compile_id  compile id
* @param integer $exp_time expiration time
*
* @return integer number of template files deleted
*/
  public function clearCompiledTemplate($resource_name = null, $compile_id = null, $exp_time = null)
  {
return Smarty_Internal_Utility::clearCompiledTemplate($resource_name, $compile_id, $exp_time, $this);
  }
  /**
* Return array of tag/attributes of all tags used by an template
*
* @param Smarty_Internal_Template $template
*
* @return array of tag/attributes
*/
  public function getTags(Smarty_Internal_Template $template)
  {
return Smarty_Internal_Utility::getTags($template);
  }
  /**
* Run installation test
*
* @param array $errors Array to write errors into, rather than outputting them
*
* @return boolean true if setup is fine, false if something is wrong
*/
  public function testInstall(&$errors = null)
  {
return Smarty_Internal_Utility::testInstall($this, $errors);
  }
  /**
* Error Handler to mute expected messages
*
* @link http://php.net/set_error_handler
*
* @param integer $errno Error level
* @param    $errstr
* @param    $errfile
* @param    $errline
* @param    $errcontext
*
* @return boolean
*/
  public static function mutingErrorHandler($errno, $errstr, $errfile, $errline, $errcontext)
  {
$_is_muted_directory = false;
// add the SMARTY_DIR to the list of muted directories
if (!isset(Smarty::$_muted_directories[SMARTY_DIR])) {
   $smarty_dir = realpath(SMARTY_DIR);
   if ($smarty_dir !== false) {
      Smarty::$_muted_directories[SMARTY_DIR] = array(
      'file'  => $smarty_dir,
      'length' => strlen($smarty_dir),
      );
   }
}
// walk the muted directories and test against $errfile
foreach (Smarty::$_muted_directories as $key => &$dir) {
   if (!$dir) {
      // resolve directory and length for speedy comparisons
      $file = realpath($key);
      if ($file === false) {
      // this directory does not exist, remove and skip it
      unset(Smarty::$_muted_directories[$key]);
      continue;
      }
      $dir = array(
      'file'  => $file,
      'length' => strlen($file),
      );
   }
   if (!strncmp($errfile, $dir['file'], $dir['length'])) {
      $_is_muted_directory = true;
      break;
   }
}
// pass to next error handler if this error did not occur inside SMARTY_DIR
// or the error was within smarty but masked to be ignored
if (!$_is_muted_directory || ($errno && $errno & error_reporting())) {
   if (Smarty::$_previous_error_handler) {
      return call_user_func(Smarty::$_previous_error_handler, $errno, $errstr, $errfile, $errline, $errcontext);
   } else {
      return false;
   }
}
  }
  /**
* Enable error handler to mute expected messages
*
* @return void
*/
  public static function muteExpectedErrors()
  {
/*
   error muting is done because some people implemented custom error_handlers using
   http://php.net/set_error_handler and for some reason did not understand the following paragraph:
      It is important to remember that the standard PHP error handler is completely bypassed for the
      error types specified by error_types unless the callback function returns FALSE.
      error_reporting() settings will have no effect and your error handler will be called regardless -
      however you are still able to read the current value of error_reporting and act appropriately.
      Of particular note is that this value will be 0 if the statement that caused the error was
      prepended by the @ error-control operator.
   Smarty deliberately uses @filemtime() over file_exists() and filemtime() in some places. Reasons include
      - @filemtime() is almost twice as fast as using an additional file_exists()
      - between file_exists() and filemtime() a possible race condition is opened,
      which does not exist using the simple @filemtime() approach.
*/
$error_handler = array('Smarty', 'mutingErrorHandler');
$previous = set_error_handler($error_handler);
// avoid dead loops
if ($previous !== $error_handler) {
   Smarty::$_previous_error_handler = $previous;
}
  }
  /**
* Disable error handler muting expected messages
*
* @return void
*/
  public static function unmuteExpectedErrors()
  {
restore_error_handler();
  }
}
// Check if we're running on windows
Smarty::$_IS_WINDOWS = strtoupper(substr(PHP_OS, 0, 3)) === 'WIN';
// let PCRE (preg_*) treat strings as ISO-8859-1 if we're not dealing with UTF-8
if (Smarty::$_CHARSET !== 'UTF-8') {
  Smarty::$_UTF8_MODIFIER = '';
}
/**
* Smarty exception class
*
* @package Smarty
*/
class SmartyException extends Exception
{
  public static $escape = false;
  public function __toString()
  {
return ' --> Smarty: ' . (self::$escape ? htmlentities($this->message) : $this->message) . '  Smarty Compiler: ' . $this->message . '  true,
'smarty_config_compiled'    => true,
'smarty_security'       => true,
'smarty_cacheresource'       => true,
'smarty_cacheresource_custom' => true,
'smarty_cacheresource_keyvaluestore' => true,
'smarty_resource'       => true,
'smarty_resource_custom'    => true,
'smarty_resource_uncompiled'    => true,
'smarty_resource_recompiled'    => true,
  );
  if (!strncmp($_class, 'smarty_internal_', 16) || isset($_classes[$_class])) {
include SMARTY_SYSPLUGINS_DIR . $_class . '.php';
  }
}

php封装的smarty类完整实例

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