$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// post数据
curl_setopt($ch, CURLOPT_POST, 1);
// post的变量
curl_setopt($ch, CURLOPT_POSTFIELDS,$data);
curl_setopt($ch, CURLOPT_HEADER, 0);
//设置头部信息
$headers = array('Content-Type:application/json; charset=utf-8','Content-Length: '.strlen($data));
curl_setopt($ch, CURLOPT_HTTPHEADER,$headers);
//执行请求
$output = curl_exec($ch);