for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
<?php
/**
*
* This file is part of Aura for PHP.
* @license http://opensource.org/licenses/bsd-license.php BSD
*/
namespace Aura\Filter\Rule\Validate;
* Validates that the value is letters only (upper or lower case).
* @package Aura.Filter
class Alpha
{
* @param object $subject The subject to be filtered.
* @param string $field The subject field name.
* @return bool True if valid, false if not.
public function __invoke($subject, $field)
$value = $subject->$field;
if (! is_scalar($value)) {
return false;
}
return (bool) preg_match('/^[\p{L}]+$/u', $value);