php中curl远程调用获取数据

$jump_url=$this->_post('locations');
$url=htmlspecialchars_decode($jump_url);
$ch = curl_init();
$timeout=3;
$URL = $url;
curl_setopt ($ch, CURLOPT_URL, $URL);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$file_contents = curl_exec($ch);
curl_close($ch);