You can also use the connection between two peers to exchange arbitrary binary data using the RTCDataChannel interface. This can be used for back-channel information, metadata exchange, game status packets, file transfers, or even as a primary channel for data transfer.
вообще-то боты в 2019 самым первым сканируют robots.txt !!!
Как пользоваться foreach: https://www.php.net/manual/ru/control-structures.f...