Swoole\WebSocket\Server::pack

(PHP 5 >= 5.2.0, PHP 7, PECL swoole >= 1.9.0)

Swoole\WebSocket\Server::pack — Get a pack of binary data to send in a single frame.

public static binary Swoole\WebSocket\Server::pack ( string $data [, string $opcode [, string $finish [, string $mask ]]] )