- substr: documentation ( source)
- pathinfo: documentation ( source)
<?php
$page_uri = 'http://www.example.com/some_path/to/?param=1';
$path_parts = pathinfo($page_uri);
if (!isset($path_parts['extension']) && strlen($page_uri) > 1) {
$end = substr($page_uri, -1, 1);
$page_uri_slash_fixed = (($end == '/') ? substr($page_uri, 0, -1) : $page_uri . '/');
}
echo $page_uri . PHP_EOL;
echo $page_uri_slash_fixed;