Adding trailing slash

$url = $_post['url'];

if $url is like http://www.google.com then i am trying to convert it to http://www.google.com/ . So basically trying to add a trailing slash if not present.

Thank you.

 

Something like this?

if (!substr($url, -1) == '/') $url .= '/';

Code (markup):

 

Thank you boss @SchmitzIT

 

if (substr($url, -1) != '/')  {
  $url .= '/';
}

PHP: