- var_dump: documentation ( source)
- preg_match: documentation ( source)
- preg_quote: documentation ( source)
<?php
$bucket = preg_quote('lookmia-local-us', '/');
$bucket = 'lookmia-local-us';
preg_match("#$bucket#", 'https://lookmia-local-us.s3.amazonaws.com', $matches);
var_dump($matches);