Online PHP editor | refs for nbqE7

<?php var_dump(preg_quote("http://grenade.dev/", "/")); var_dump(preg_replace("/(http:\/\/grenade\.dev\/)(?:uk)?/", "http://grenade.dev/eu", "http://grenade.dev/")); var_dump(preg_replace("/(http:\/\/grenade\.dev\/)(?:uk)?/", "http://grenade.dev/eu", "http://grenade.dev/uk")); var_dump(preg_replace("/(http:\/\/grenade\.dev\/)(?:uk)?/", "http://grenade.dev/eu", "http://grenade.dev/uk/some-page"));