extract last part of a url

Question

need the last part of the url

http://example.com then the last part is nothing if it is http://example.com/i then last part is i if it is http://example.com/i/am/fil

Answer 1

$url = 'http://example.com/i/am/file.php';
$url = rtrim($url, '/');
preg_match('/([^\/]*)$/', $url, $match);
var_dump($match);

Test