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PHP认证码解决方案

WBOY
WBOYOriginal
2016-06-13 10:03:36824browse

PHP认证码
谁给我写个认证码,如果实现通过现金谢~~~现金200元人民币~~~QQ:357816807

------解决方案--------------------
写的太早了,你自己调试下。

PHP code
<?php /**       Filename:   authimg.php*       Author:       唯她*       Date:           2003年6月3日*       @Copyleft   www.vitalstudio.cn*/session_start();srand((double)microtime()*1000000);while(($authnum=rand()%10000) < 1000);//生成四位随机整数验证码$_SESSION['auth']=$authnum;//生成验证码图片Header("Content-type:   image/png");$im   =   imagecreate(45,16);$black   =   ImageColorAllocate($im,   200,10,0);$white   =   ImageColorAllocate($im,   255,255,255);$gray   =   ImageColorAllocate($im,   230,230,230);   //将这两行提前至   $im   ..下面imagefill($im,68,30,$gray);//将四位整数验证码绘入图片//位置交错for   ($i   =   0;   $i   <   strlen($authnum);   $i++)   {if   ($i%2   ==   0)   $top   =   0;else   $top   =   2;imagestring($im,   5,   10*$i+3,   $top,   substr($authnum,$i,1),   $black);}for($i=0;$i<250;$i++)       //加入干扰象素{imagesetpixel($im,   rand()%70   ,   rand()%30   ,   $black);}ImagePNG($im);ImageDestroy($im);?><div class="clear">
                 
              
              
        
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