Detailed explanation of OOP inheritance usage in PHP object-oriented programming

This article mainly introduces the usage of OOP inheritance in PHP object-oriented programming, and analyzes the definition and inheritance usage of PHP classes in the form of simple examples. Friends in need can refer to it

The examples in this article describe PHP OOP inheritance usage in object-oriented programming. Share it with everyone for your reference, the details are as follows:

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();
?>

Result:

kaifu在说话
kaifu正在edu学习
kaifu正在edu教学，每月工资为4000

The above is the entire content of this article, I hope it will be helpful to everyone's study.

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