private static function _cget($url = '')
{
if (!$url) {
return;
}
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_REFERER, "http://www.baidu.com");
curl_setopt($ch, CURLOPT_USERAGENT, self::USER_AGENT);
ob_start();
curl_exec($ch);
$html = ob_get_contents();
ob_end_clean();
if (curl_errno($ch)) {
curl_close($ch);
return false;
}
curl_close($ch);
if (!is_string($html) || !strlen($html)) {
return false;
}
return $html;
}