奉献出一个封装的curl函数 便于调用(抓数据专用)

奉献出一个封装的curl函数，便于调用

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;
}

抓数据专用