- strtr: documentation ( source)
<?php
$path = '/vb/frontend/web/img/up/bf9b12de5ea78cecacd3dde69f2a72f8/708/195c8e9069e9b356767ca57d3ead6285/7/l.jpg';
$webRoot = '/var/www/vb';
strtr($path, [
$webRoot . '/web' => '',
$webRoot . '_dev/web' => '',
$webRoot . '_stage/web' => '',
]);