Network packets help

Hello everyone!

I wanted to add a player to a server without a client and any plugins, so I wrote this:

PHP:

$sock = socket_create(AF_INET,SOCK_DGRAM,SOL_UDP);
$msg = chr(0x05);
$msg_size = 35;
$server = '192.168.1.68';
$port = 19132;
socket_sendto($sock,$msg, $msg_size,0 ,$server,$port);
$msg = chr(0x07);
$msg_size = 35;
$server = '192.168.1.68';
$port = 19132;
socket_sendto($sock,$msg, $msg_size,0 ,$server,$port);

Player connects, but then error happens:

17:54:41 [ERROR] A E_WARNING error happened: "str_split(): The length of each segment must be greater than zero" in "C:\Users\Admin\Desktop\PM MP\PocketMine-MP 12\src\Player.php" at line 2326
17:54:41 [ERROR] A E_WARNING error happened: "Invalid argument supplied for foreach()" in "C:\Users\Admin\Desktop\PM MP\PocketMine-MP 12\src\Player.php" at line 2331
17:54:41 [INFO] [/192.168.1.68:53557] logged out due to timeout

And player logs out due to timeout.

Could anyone help me?

The packet contains too little data.