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php 解决表单重复提交实现方法介绍

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Release： 2016-05-25 16:40:07
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重复提交是我们开发中会常碰到的一个问题,除了我们使用js来防止表单的重复提交,同时还可以使用php来防止重复提交.

例1,代码如下:

Copy after login

具体原理:session范围变量token来防止.

1.开启session:session_start();

2.如果有表单提交,代码如下:

if (isset($token))

token以hidden的形式包含在form当中,代码如下:

Copy after login

3.如果是重复提交表单,代码如下:

Copy after login

4.设置token值,代码如下:


        

         Copy after login


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Related labels：
php重复提交 php表单提交
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