奉献出一个封装的curl函数 便于调用(抓数据专用)

　　function curl($url, $ifpost = 0, $datafields = '', $cookiefile = '', $v = false) {

　　$header = array("Connection: Keep-Alive","Accept: text/html, application/xhtml+xml, */*", "Pragma: no-cache", "Accept-Language: zh-Hans-CN,zh-Hans;q=0.8,en-US;q=0.5,en;q=0.3","User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0)");

　　$ch = curl_init();

　　curl_setopt($ch, CURLOPT_URL, $url);

　　curl_setopt($ch, CURLOPT_HEADER, $v);

　　curl_setopt($ch, CURLOPT_HTTPHEADER, $header);

　　$ifpost && curl_setopt($ch, CURLOPT_POST, $ifpost);

　　$ifpost && curl_setopt($ch, CURLOPT_POSTFIELDS, $datafields);

　　curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

　　curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

　　curl_setopt($ch, CURLOPT_ENCODING, 'gzip,deflate');

　　$cookiefile && curl_setopt($ch, CURLOPT_COOKIEFILE, $cookiefile);

　　$cookiefile && curl_setopt($ch, CURLOPT_COOKIEJAR, $cookiefile);

　　$r = curl_exec($ch);

　　curl_close($ch);

　　return $r;

　　}