What is the method of parent in php

The parent method in php can be used to call member methods defined in the parent class. The code is [class Manager extends employee {public function getSal(){parent::getSal()}].

The operating environment of this tutorial: Windows 7 system, PHP version 5.6, DELL G3 computer. This method is suitable for all brands of computers.

Parent method in php: to reference the method of the parent class.

• parent:: Can be used to call member methods defined in the parent class.

• parent:: traces back beyond the direct parent class.

Call the parent class method through parent::

<!-- 声明一个员工类,经理类继承自员工类 -->
<?php
class employee{
    protected  $sal=3000;        
    public function getSal(){
        $this->sal = $this->sal + 1200;        
        return $this->sal ;
    }    
}
class Manager extends employee {
    //如果想让经理在员工工资的基础上多发1500元.
    //必须先调用父类的getSal()方法.
    public function getSal(){        
        parent::getSal();// 这里调用了父类的方法.
        $this->sal = $this->sal + 1500;        
        return $this->sal ;
    }    
}
$emp = new employee();
echo "普通员工的工资是 " . $emp->getSal();
echo "<br>";
$manager = new Manager();
echo "经理的工资是: " . $manager->getSal();

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