Trailing spaces not allowed no-trailing-spaces code example
Example: check url if it has trailing slash
$getWholeUrl = "http://".$_SERVER['HTTP_HOST']."".$_SERVER['REQUEST_URI']."";
//The output would be
/*
http://localhost/tabulation/event/event_name/
*/
if(substr($getWholeUrl , -1)=='/'){
//Add your condition here
}