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php数字运算验证码的实现代码

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Release: 2016-06-06 19:50:13
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这篇文章主要介绍了php实现数字运算验证码的方法,具有一定借鉴价值,需要的朋友可以参考下

本文实例讲述了php实现数字运算验证码的方法,具体实现方法如下:


实现效果:

php数字运算验证码的实现代码

以上介绍的就是使用php实现数字运算验证码的方法,希望对大家的学习有所帮助。

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