strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated

[jupitern]

PHP 8.1

strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated on /var/www/app/vendor/cboden/ratchet/src/Ratchet/Server/IoServer.php line 88

stacktrace:
"#1 /var/www/app/vendor/cboden/ratchet/src/Ratchet/Server/IoServer.php(88): strpos()",
"#2 /var/www/app/vendor/evenement/evenement/src/Evenement/EventEmitterTrait.php(123): Ratchet\Server\IoServer->handleConnect()",
"#3 /var/www/app/vendor/react/socket/src/SocketServer.php(72): Evenement\EventEmitter->emit()",
"#4 /var/www/app/vendor/evenement/evenement/src/Evenement/EventEmitterTrait.php(123): React\Socket\SocketServer->React\Socket\{closure}()",
"#5 /var/www/app/vendor/react/socket/src/TcpServer.php(255): Evenement\EventEmitter->emit()",
"#6 /var/www/app/vendor/react/socket/src/TcpServer.php(235): React\Socket\TcpServer->handleConnection()",
"#7 /var/www/app/vendor/react/event-loop/src/StreamSelectLoop.php(246): React\Socket\TcpServer->React\Socket\{closure}()",
"#8 /var/www/app/vendor/react/event-loop/src/StreamSelectLoop.php(213): React\EventLoop\StreamSelectLoop->waitForStreamActivity()",
"#9 /var/www/app/vendor/cboden/ratchet/src/Ratchet/Server/IoServer.php(74): React\EventLoop\StreamSelectLoop->run()"

[SimonFrings]

I'm currently working on testing this project against PHP 8.0, PHP 8.1 and PHP 8.2, so I opened up a ticket to post my progress in, see #1003.

[clue]

@jupitern Please take the time to properly report issues. I'm not sure what you're reporting is a bug or issue in this project, so I can only assume this is related to #1003 and will close this for now. Please report back and add more details otherwise.

[Gkiokan]

It is probably only a deprecation warning that spams the logs full on each call.
Probably.

The issue happens on this IoServer.php:88.

And can be probably fixed by adding an alternative fallback to the $uri variable before.
But this would be just a quick fix to stop the deprecation warnings, as everything seems to work fine.
Change this from:

        $uri = $conn->getRemoteAddress();

to

        $uri = $conn->getRemoteAddress() ?? '';

The more correct way would be to debug down why $conn->getRemoteAddress() returns null instead of any valid address.