php curl模拟登陆

$url="url地址";$post_file="username=xxx&password=xxx";$cookie_jar = dirname(__FILE__)."/pic.cookie";$curl = curl_init();curl_setopt( $curl,CURLOPT_URL,$url );curl_setopt( $curl,CURLOPT_RETURNTRANSFER,true );curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);//规避证书curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1); // 防止302 盗链curl_setopt($curl, CURLOPT_POSTFIELDS, $post_file);//要提交的信息 curl_setopt($curl, CURLOPT_COOKIEJAR, $cookie_jar); //设置Cookie信息保存在指定的文件中 $output = curl_exec( $curl );curl_close( $curl );        print_r($output);                $urldata = "要操作的url带cookie的";$post = "content=立马开始灌水啦&shopid=232";$ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $urldata);  //设置curlcurl_setopt($ch, CURLOPT_HEADER, false);curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);curl_setopt($ch, CURLOPT_POSTFIELDS, $post); //post数据curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_jar); //读取jar$output2 = curl_exec($ch);    //发送HTTP请求 curl_close($ch); print_r($output2);//获取指定页面$ch = curl_init();curl_setopt($ch, CURLOPT_URL, $url);curl_setopt($ch, CURLOPT_HEADER, false);curl_setopt($ch, CURLOPT_HEADER, 0);curl_setopt($ch, CURLOPT_RETURNTRANSFER,0);        curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_jar);$html=curl_exec($ch);// var_dump($html);curl_close($ch);@承鹏辉