how important are slash end of html 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

}