<?php namespace Violin\Rules; use Violin\Contracts\RuleContract; class AlnumRule implements RuleContract { public function run($value, $input, $args) { return (bool) preg_match('/^[\pL\pM\pN]+$/u', $value); } public function error() { return '{field} must be alphanumeric.'; } public function canSkip() { return true; } }