Loading... 利用PHP的MD5函数可以最简单生成md5加密 ```PHP <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>MD5</title> </head> <body> <form action="" method="post"> <input type="text" name="md5"> <input type="submit"> </form> <?php if(empty($_POST['md5'])){ $_POST['md5']=null; }//解决post为空的警告 $md5=$_POST['md5'];//加@可以忽略警告 if(!empty($md5)) echo $md5.'的16位小写MD5:'.substr(md5($md5),8,16);//md5的16位的加密和32位的第8-24位是一样的,可以通过substr来截取 echo '<br>'; echo $md5.'的16位大写MD5:'.strtoupper(substr(md5($md5),8,16));//strtoupper() 可以转换大写 echo '<br>'; echo $md5.'的32位小写MD5:'.md5($md5); echo '<br>'; echo $md5.'的32位大写MD5:'.strtoupper(md5($md5)); ?> </body> </html> ``` Last modification:November 29th, 2018 at 11:36 am © 允许规范转载 Support 如果觉得我的文章对你有用,请随意赞赏 ×Close Appreciate the author Sweeping payments Pay by AliPay Pay by WeChat