支持中文字母数字、自定义字体php验证码程序
验证码常用于登陆页面、留言页面、注册页面,验证码的原理很简单:利用GD库创建一个图片,图片当然要加上必要的干扰码,然后在服务器端存入SESSION,等用户提交的时候判断session是否相同。
代码如下 | 复制代码 |
/*
//session_start(); |

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