php curl----------curl各种方式请求详解

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// 类型为json
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
    'Content-Type: application/json; charset=utf-8'
));

// post传递
curl_setopt($ch, CURLOPT_POST, 1);
// 传输json数据
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($options));
// 传输表单数据
curl_setopt($ch, CURLOPT_POSTFIELDS, $options);

curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
$output = curl_exec($ch);

curl_close($ch);