PHP curl登录跳过验证码

<?php
switch($_GET['do']){
    case 'vc':
        $cookieFile = "./test.tmp";
        $url = 'http://localhost/test/login.php?do=vcode&?r='.rand();
        $ch = curl_init($url);
        curl_setopt($ch,CURLOPT_COOKIEJAR, $cookieFile); // 把返回来的cookie信息保存在文件中
        curl_exec($ch);
        curl_close($ch);
        exit;
        break;
    case 'login':
        $pars = http_build_query($_GET);
        $cookieFile = "./test.tmp";
        $url = 'http://localhost/test/login.php?do=login&'.$pars;
        $ch = curl_init($url);
        curl_setopt($ch,CURLOPT_COOKIEFILE, $cookieFile); //同时发送Cookie
        curl_exec($ch);
        curl_close($ch);
        //虚拟操作
        $url = 'http://localhost/test/login.php?do=dosth';
        $ch = curl_init($url);
        curl_setopt($ch,CURLOPT_COOKIEFILE, $cookieFile); //同时发送Cookie
        curl_exec($ch);
        curl_close($ch);
        exit;
        break;
    default :
        break;
}
?>
<html>
    <form action="">
        <input type="hidden" value="login" name="do">
        <input type="text" value="test" name="u">
        <input type="password" value="testp" name="p">
        <input type="text" value="" name="vc">
        <input type="submit" value="OK"> 
        <iframe src="http://localhost/test/vmlogin.php?do=vc" ><iframe>
    </form>
</html>

登录页面 login.php：

<?php
session_start();
switch($_GET['do']){
    case 'vcode':
        echo $_SESSION['vc'] = rand(100,999);
        exit();
        break;
    case 'login':
        if($_GET['vc'] !=  $_SESSION['vc'])
            die('veryfy code error');
        $auth = array('test'=>'testp');    
        if($auth[$_GET['u']] == $_GET['p']){
            $_SESSION['has_login'] = 1;
            header("location:http://localhost/test/");
        }else{
            die('invalid user/pwd');
        }
        exit();
        break;
    case 'dosth':
        if($_SESSION['has_login'])
            exit("do sth");
        else
            exit("no privilege");
        break;
    default: 
        break;
}
?>
<html>
    <form action="">
        <input type="text" value="" name="u">
        <input type="password" value=""  name="p">
        <input type="text" value="" name="vc">
        <input type="hidden" value="login" name="do">
        <input type="submit" value="OK"> 
        <iframe src="http://localhost/test/login.php?do=vcode" ><iframe>
    </form>
</html>

PHP curl登录 跳过验证码

PHP curl登录跳过验证码