<?php if (!defined('REST')) { exit('Access Denied'); } include_once "class_cryption.php"; $c = new Cryption(); $s = "ri.idt@163.com && riidt0807"; $k = "riidt0807"; $en = $c->en($s, $k); $de = $c->de($en, $k); echo $de . "<br>"; echo $en . "<br>"; echo $s . "<br>";