php使用curl模拟登录带验证码的网站[开发篇]
需求是这样的，需要登录带验证码的网站，获取数据，但是不可能人为一直去记录数据，想通过自动采集的方式进行，如下是试验出来的结果代码！有需要的可以参考下！<?phpnamespace HomeController;use ThinkController;class LoginController extends Controller{protected $cookieName = array('cookie_verify', 'cookie_verify');protected $cookiePath = '/cookie/';protected $cookiePathFile = array();public function index(){$this->display();}public function _initialize(){foreach($this->cookieName as $key => $name){$this->cookiePathFile[] = ROOT_PATH . $this->cookiePath . $this->cookieName[$key] . '_xxx.txt';}}/*** 登录xxx*/public function pc28Login(){$username = I('username');$password = I('password');$verifyCode = I('verify');$loginData = array('__VIEWSTATE' => '/wEPDwUKMTU0MzAzOTU4NmQYAQUeX19Db250cm9sc1JlcXVpcmVQb3N0QmFja0tleV9fFgEFDExvZ2luX1N1Ym1pdL/yae69NsY163G3yuP0lxjz8oXu', //不把参数补全可能会不被响应哦'__VIEWSTATEGENERATOR' => 'DC42DE27','txt_UserName' => $username,'txt_PWD' => $password,'txt_VerifyCode' => $verifyCode,'SMONEY' => 'ABC','Login_Submit.x' => '52','Login_Submit.y' => '19',);$getBack = $this->_cookieRequest('http:///noLogin.aspx', $loginData, false, true);if(preg_match('/<div[^<div]*?ids*=s*['"]{1}div_msg['"]{1}.*?>(.*?)</div>/s', $getBack, $match)){echo 'matchedrn';print_r($match);}else{echo $getBack, '<br />';$paramsFull = parse_url($getBack);parse_str($paramsFull['query'], $paramsFull['parsedQuery']);if(!empty($paramsFull['parsedQuery']['Warn'])) {$msg = "您好，欢迎来P，请先登录。";switch ($paramsFull['parsedQuery']['Warn']){case '2':$msg = '您输入的验证码错误，请重试';break;case '3':$msg = '该帐号不存在，还没帐号？';break;case '5':$msg = '账户已注销';break;case '6':$msg = '密码错误，如果连续错误3次半小时内不能登录！';break;case '20':$msg = '今日密码错误3次及以上，请于半小时后再来登录！';break;case '21':$msg = '今日您所在IP的所有帐号密码错误9次以上，请于半小时后再来登录！';break;case '22':$msg = '登录失败，您所在IP今日登录的帐号过多！';break;case '23':$msg = '登录失败，验证码失效！';break;case '32':$msg = '该帐号已经绑定其他xx帐号！';break;case '33':$msg = '一台电脑一天只能注册一个帐号！';break;}$this->error($msg, '', 5);}else{$_SESSION['user_id'] = '123456'; //登录设置session$this->success('登录P网站成功', U('Index/index'), 5);}}}/*** 获取验证码*/public function getVerifyCode(){$img = $this->_cookieRequest('http:///VerifyCode_Login.aspx?id=' . rand(10000,999999), null, true, 1);echo $img;}/*** 删除cookie*/public function clearCookie(){for($i = 0; $i <count($this->cookieName); $i++){setcookie($this->cookieName[$i], '', time() - 3600);}// unlink($this->cookiePathFile);$this->success('清除cookie成功！');}/*** 带COOKIE的访问curl* @param $url 访问地址* @param bool|array $data 传递的数据* @param bool $redirect 是否获取重定向的地址* @param bool $isLogin 是否为登录，登录需要保存COOKIE* @return mixed 地址或者返回内容*/public function _cookieRequest($url, $data = null, $redirect = false, $isLogin = false, $cookieNum = 0){$ch = curl_init();$params[CURLOPT_URL] = $url; //请求url地址$params[CURLOPT_HEADER] = false; //是否返回响应头信息$params[CURLOPT_RETURNTRANSFER] = true; //是否将结果返回$params[CURLOPT_FOLLOWLOCATION] = true; //是否重定向$params[CURLOPT_USERAGENT] = 'Mozilla/5.0 (Windows NT 5.1; rv:9.0.1) Gecko/20100101 Firefox/9.0.1';if($data){$params[CURLOPT_POST] = true;$params[CURLOPT_POSTFIELDS] = http_build_query($data);}//判断是否有cookie,有的话直接使用if (!empty($_COOKIE[$this->cookieName[$cookieNum]]) && is_file($this->cookiePathFile[$cookieNum])){$params[CURLOPT_COOKIEFILE] = $this->cookiePathFile[$cookieNum]; //这里判断cookieif($isLogin){$params[CURLOPT_COOKIEJAR] = $this->cookiePathFile[$cookieNum]; //写入cookie信息,可能每次都会有写入}}else{// $cookie_jar = tempnam($cookie_path, 'cookie'); //产生一个cookie文件$params[CURLOPT_COOKIEJAR] = $this->cookiePathFile[$cookieNum]; //写入cookie信息setcookie($this->cookieName[$cookieNum], $this->cookiePathFile[$cookieNum], time() + 120); //保存cookie路径}curl_setopt_array($ch, $params); //传入curl参数$content = curl_exec($ch);$headers = curl_getinfo($ch);// echo $content;curl_close($ch);if ($url != $headers["url"] && $redirect == false){return $headers["url"];}return $content;}} 登录以后，就可以使用带cookie的访问其他页面了！
