Question

The code below removes “www.”, etc. from the beginning of websites that are entered into a database. It works great.

Is there a way I could use similar code to remove a forward-slash from the tail-end of a website that is entered into the same database?

$remove_array = array('http://www.', 'http://', 'https://', 'https://www.', 'www.');
$site = str_replace($remove_array, "", $_POST['site']);

Answer 1

$site = preg_replace('{/$}', '', $site);

This uses a relatively simple regular expression. The $ means only match slashes at the end of the string, so it won’t remove the first slash in stackoverflow.com/questions/. The curly braces {} are just delimiters; PHP requires matching characters and the front and back of regular expressions, for some silly reason.