一个函数，利用curl实现GET/POST
function oauth_http($method,$header,$url,$data){
$method = $method ? $method : 'get';
if( $method == 'get') {
$ch = curl_init ();
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, TRUE );
curl_setopt ( $ch, CURLOPT_URL, $url );
$result = curl_exec ( $ch );
curl_close ( $ch );
return $result;
...
