/**
 * 發(fā)送HTTP請求方法
 * @param  string $url    請求URL
 * @param  array  $params 請求參數(shù)
 * @param  string $method 請求方法GET/POST
 * @return array  $data   響應數(shù)據(jù)
 */
function http($url, $params, $method = 'GET', $header = array(), $multi = false){
    $opts = array(
        CURLOPT_TIMEOUT        => 30,
        CURLOPT_RETURNTRANSFER => 1,
        CURLOPT_SSL_VERIFYPEER => false,
        CURLOPT_SSL_VERIFYHOST => false,
        CURLOPT_HTTPHEADER     => $header
    );
    /* 根據(jù)請求類型設置特定參數(shù) */
    switch(strtoupper($method)){
        case 'GET':
            $opts[CURLOPT_URL] = $url . '?' . http_build_query($params);
            break;
        case 'POST':
            //判斷是否傳輸文件
            $params = $multi ? $params : http_build_query($params);
            $opts[CURLOPT_URL] = $url;
            $opts[CURLOPT_POST] = 1;
            $opts[CURLOPT_POSTFIELDS] = $params;
            break;
        default:
            throw new Exception('不支持的請求方式！');
    }
    /* 初始化并執(zhí)行curl請求 */
    $ch = curl_init();
    curl_setopt_array($ch, $opts);
    $data  = curl_exec($ch);
    $error = curl_error($ch);
    curl_close($ch);
    if($error) throw new Exception('請求發(fā)生錯誤：' . $error);
    return  $data;
}

public function test()
    {
        $url = 'https://api.topthink.com/weather/query';
        $param = [
            'appCode'=>'填之前（二）里面自己的Appcode',
            'city'=>'重慶'
        ];
        $header = array("Content-Type: application/x-www-form-urlencoded; charset=UTF-8");
        //must have it ↑
        $res = http($url,$param,'GET',$header);
        $res = json_decode($res,true);
        if($res['code']!=0)
            return \json('接口調(diào)用出錯啦');
        var_dump($res);
    }