<?PHP

/**
 * {
 *   unisgned char type;
 *   unsigned int time;
 *   unsigned int serid;
 *   unsigned int length;
 *   char body[length];
 * }
 */
function remoteCall(string $host, $port, string $data) {
    $length = strlen($data);
    $pack = pack('CNNNa*', 1, time(), 0, $length, $data);
    $client = new Swoole\Client(SWOOLE_SOCK_TCP);

    $client->set(array(
        'open_length_check' => true,
        'package_max_length' => 81920,
        'package_length_type' => 'N',
        'package_length_offset' => 9,
        'package_body_offset' => 13
    ));

    if (!$client->connect($host, $port, 0.5)) {
        return false;
    }

    $client->send($pack);
    $pack = @$client->recv();
    $client->close();

    if ($pack === false) {
        //echo $client->errCode . "\n";
        //TODO 获取错误码并进行处理
        return false;
    } else if (empty($pack)) {
        echo "close by peer\n";
        return false;
    }

    $ret = unpack('Ctype/Ntime/Nserid/Nlength/a*data', $pack);
    
    return $ret['data'];
}


$ret = remoteCall("127.0.0.1", "5188", '{"controller":"site","methor":"test","params":{"id":1}}');

//'{"controller":"site","methor":"test","params":{"id":"111"}}
//'{"controller":"site","methor":"test","params":{"id":1,"status":0}}'
echo "{$ret}\n";

?>