php 魔术方法

<?php
class test {
public function  __construct() {
echo '__construct';
}

public function  __destruct() {
echo '__destruct';
}

public function  __get($key) {
echo '__get';
}

public function  __set($key,$value) {
echo '__set';
}

public function  __call($key, $args) {
echo '__call';
}

public function  __toString() {
echo '__toString';
}

public function  __clone() {
echo '__clone';
}
}
$test = new test();
?>