Domain / url regex

domainValidation.php

<?php
// tested here: https://regex101.com/r/iC1uQ4/1

// as laravel validation rule: 'regex:/^((http|https)\:\/\/|)([\w]+\.)+\w+($|[\w\/\.]+$|[\w\/\.]+\?[\w\=\&\.]+$)/'

$re = "/^((http|https)\:\/\/|)([\w|\-]+\.)+\w+($|[\w\-\/\.]+$|[\w\/\.]+\?[\w\=\&\.]+$)/"; 
$str = "www.example.com/metropolitanlondon";
preg_match($re, $str, $matches);

/*

true   www.example.com/metropolitanlondon
true   www.example.com
true   http://example.co.uk
true   example.com//dwa/../dwd
true   www.example.com/dawdwad/fsef/rdgdr_szg/gsedg?btfbftb=fgersg&gdsrzgrg=rsths.sfra
false  xrftjcomjfcgyvhj

*/