and i really need a code to remove the ending slash when a user put their link. for example i need them to put their url to grab their avatar, but in some cases they put their url ending with a slash (.com/) how can i remove that slash automatically? because when they put their url like that the avatar doesn't show i need them to end like this (.com) in order to show their avatar.

I was looking for a remove trailing slash php code, but any solution will be appreciated.

i tried to use this code but didn't work

$string = rtrim($string, '/');