使用curl进行验证码生成和验证

a.php

i.php

    

    session_start();

    $cookie_jar=tempnam("temp","webbeast");

    $_SESSION[‘cookie_jar‘]=$cookie_jar;

    $ch=curl_init();

    curl_setopt($ch,CURLOPT_URL,"http://www.webbeast.cn/include/seccode.php");

    curl_setopt($ch,CURLOPT_REFERER,"http://www.webbeast.cn/?action=show&id=26&page=1");

    curl_setopt($ch,CURLOPT_COOKIEJAR,$cookie_jar);

    curl_setopt($ch,CURLOPT_COOKIEFILE,$cookie_jar);

    curl_setopt($ch,CURLOPT_USERAGENT,$_SERVER[‘HTTP_USER_AGENT‘]);

    curl_setopt($ch,CURLOPT_RETURNTRANSFER,false);

    if(strpos(strtolower($_SERVER[‘HTTP_USER_AGENT‘]),‘msie‘)===false)

    {

        header("content-type:image/jpg");

    }

    curl_exec($ch);

    curl_close($ch);

    ?>

b.php

    

    session_start();

    ?>

    

    

    

    

      

      

      

      

      

    

     

    

i.php

    

    session_start();

    $cookie_jar=tempnam("temp","webbeast");

    $_SESSION[‘cookie_jar‘]=$cookie_jar;

    $ch=curl_init();

    curl_setopt($ch,CURLOPT_URL,"http://www.webbeast.cn/include/seccode.php");

    curl_setopt($ch,CURLOPT_REFERER,"http://www.webbeast.cn/?action=show&id=26&page=1");

    curl_setopt($ch,CURLOPT_COOKIEJAR,$cookie_jar);

    curl_setopt($ch,CURLOPT_COOKIEFILE,$cookie_jar);
<
cde2
p class="p0" style="font-family:'宋体';line-height:23px;margin-bottom:0pt;margin-top:0pt;">
    curl_setopt($ch,CURLOPT_USERAGENT,$_SERVER[‘HTTP_USER_AGENT‘]);

    curl_setopt($ch,CURLOPT_RETURNTRANSFER,false);

    if(strpos(strtolower($_SERVER[‘HTTP_USER_AGENT‘]),‘msie‘)===false)

    {

        header("content-type:image/jpg");

    }

    curl_exec($ch);

    curl_close($ch);

    ?>

b.php

    

    session_start();

    ?>

    

    

    

    

      

      

      

      

      

    

    

    

    if(empty($_SESSION[‘cookie_jar‘])) exit();

    $cookie_jar=$_SESSION[‘cookie_jar‘];

    $verify=$_POST[‘verify_code‘];

    $ch=curl_init();

    curl_setopt($ch,CURLOPT_URL,"http://www.webbeast.cn/post.php");

    curl_setopt($ch,CURLOPT_REFERER,‘http://www.webbeast.cn/?action=show&id=26&page=1‘);

    curl_setopt($ch,CURLOPT_POST,1);

    curl_setopt($ch,CURLOPT_POSTFIELDS,"articleid=26&formhash=2d47d0be&username=cat&password=&url=&content=oh,MyGOD!&clientcode=".$verify."&action=addcomment");

    curl_setopt($ch,CURLOPT_COOKIEJAR,$cookie_jar);

    curl_setopt($ch,CURLOPT_COOKIEFILE,$cookie_jar);

    curl_setopt($ch,CURLOPT_FOLLOWLOCATION,1);

    curl_setopt($ch,CURLOPT_RETURNTRANSFER,false);

    curl_exec($ch);

    curl_close($ch);

    ?>

    

用上边这些代码示例可以调用到别人网站的验证码并且进行验证，如果作一下修改就能做到恰当地插入到自己的网站，