- implode: documentation ( source)
- explode: documentation ( source)
- parse_url: documentation ( source)
- array_filter: documentation ( source)
<?php
$url = 'https://photoland2.etrafficgroup.com.au/frames-and-albums/frames/wooden-frames/106-a3-297-x-42cm-2/product/555-black-wooden-frame-with-gold-stripe-a3-42x29-7cm-size-1-7cm-wide/';
$initial = parse_url($url);
$result = array_filter(explode('/',parse_url($url)['path']));
unset($result[4]);
$filtered = implode('/',$result);
echo $initial['scheme'].'://'.$initial['host'].'/'.$filtered;
?>