Online PHP editor | output for 0d11W

<?php function formatPhoneNumber(string $phonenumber) { $phonenumber = str_replace([' ', '-', '.', '(', ')'], '', $phonenumber); if (strpos($phonenumber, '00') === 0) { $phonenumber = '+' . substr($phonenumber, 2); } if (strpos($phonenumber, '+310') === 0) { $phonenumber = '+31' . substr($phonenumber, 4); } if (strpos($phonenumber, '+') === 0) { return $phonenumber; } if (strlen($phonenumber) === 10 && strpos($phonenumber, '06') === 0) { return '+31' . ltrim($phonenumber, '0'); } return $phonenumber; } echo formatPhoneNumber('0031 6 123 45 678');