<?php /** * 面向对象 */ class People { public $name = ''; public $age = ''; public $height = ''; public $weith = ''; public function say() { echo '呱呱坠地<br />'; $this->name = 'wangba'; } } echo '<pre>'; $a = new People(); $a->say(); print_r($a);
function say() { parent::say(); echo 'my grade is ' . $this->grade; }