Replace word.

I'm trying to replace the string $name with the player name on a string that's stored in a yml file. Is there any way to do it?
Here's my code:

PHP:

    function onJoin(PlayerJoinEvent $event)
    {

        $player = $event->getPlayer();
        $name = $player->getDisplayName();
        $event->setJoinMessage(null);
        $this->getServer()->broadcastMessage($this->getConfig()->get(join-message'));
    }

Yml file:

Code:

join-message: Welcome $name to this server!

 

Use str_replace to replace the $name with the player's name.
https://www.php.net/manual/en/function.str-replace.php

 

Thank you!