本文实例讲述了PHP面向对象程序设计OOP继承用法。分享给大家供大家参考，具体如下：
name = $name;
$this->sex = $sex;
$this->age = $age;
}
function say() {
echo $this->name . "在说话
";
}
function run() {
echo "在走路·
";
}
}
class Student extends Person {
var $school;
function __construct($name = "", $sex = "男", $age = 22,$school="") {
parent::__construct($name,$sex,$age);
$this->school = $school;
}
function study() {
echo $this->name."正在".$this->school."学习
";
}
}
class Teacher extends Student {
var $wage;
function teaching() {
echo $this->name."正在".$this->school."教学，每月工资为".$this->wage."
";
}
}
$teacher1 = new Teacher("kaifu","男",22);
$teacher1->school = "edu";
$teacher1->wage = 4000;
$teacher1->say();
$teacher1->study();
$teacher1->teaching();
?>
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