详解php的魔术方法get()和set()使用介绍

PHP 2018-12-30

先看看php官方文档的解释:
set() is run when writing data to inaccessible properties.
get() is utilized for reading data from inaccessible properties.

究竟用中文怎么翻译呢？

inaccessible ：n. 难达到；难接近；无法理解。有代码有真相：
<div class="codetitle"><a style="CURSOR: pointer" data="87658" class="copybut" id="copybut87658" onclick="doCopy('code87658')"> 代码如下:

<div class="codebody" id="code87658">
<?php
error_reporting(E_ALL);
class stu{
private $a;
private $b = 0;
public $c;
public $d = 0;
//这里的 private 可以用 protected public 替代
private function get($name) {
return 123;
} //这里的 private 也可以用 protected public 替代
private function set($name,$value) {
echo "This is set function";
}
}
$s = new stu();
var_dump($s->a); //output: 123
var_dump($s->b); //output: 123
var_dump($s->c); //output: null
var_dump($s->d); //output: 0
var_dump($s->e); //output: 123
$s->a = 3; //output: This is set function
$s->c = 3; //no output
$s->f = 3; //output: This is set function
?>