PHP使用file_get_contents发送HTTP GET和POST请求

$url传入请求网址，$data传入参数数组，如果$data为空，表示GET请求，反之则是POST请求

function httpRequest($url, $data = null, $user = null, $pass = null)
{
    //$url = 'https://ktsee.com/api';
    //$data = array('key1' => 'value1', 'key2' => 'value2');
    if (isset($data) && is_array($data)) {
        // use key 'http' even if you send the request to https://...
        $options = array(
            'http' => array(
                'header' => "Content-type: application/x-www-form-urlencodedrn",
                'method' => 'POST',
                'content' => http_build_query($data)
            )
        );
        if (isset($user) && !empty($user) && isset($user) && !empty($pass)) {
            $auth = sprintf('Authorization: Basic %s', base64_encode($user . ':' . $pass));
            $options['http']['header'] .= $auth . "rn";
        }
        $context = stream_context_create($options);
        $result = file_get_contents($url, false, $context);
    } else {
        $result = file_get_contents($url);
    }
    if ($result === FALSE) {
        /* Handle error */
        return null;
    } else {
        return $result;
    }
}
调用方法：
httpRequest('https://ktsee.com/api');
httpRequest('https://ktsee.com/api',array('name'=>'a','nickname'=>'b'));