Aura\Filter\Rule\Validate\InKeys

Complexity

Total Complexity

3

Size/Duplication

Total Lines	28
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	0

Test Coverage

Coverage

100%

Importance

Changes

0

1 Method

Rating	Name	Duplication	Size	Complexity
A	__invoke()	0	11	3

<?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 a key in a given array.
 *
 * @package Aura.Filter
 *
 */
class InKeys
{
    /**
     *
     * Validates that the value is a key in a given array.
     *
     * @param object $subject The subject to be filtered.
     *
     * @param string $field The subject field name.
     *
     * @param array $array An array of key-value pairs; the value must match
     * one of the keys in this array.
     *
     * @return bool True if valid, false if not.
     *
     */
    public function __invoke($subject, $field, array $array)
    {
        $value = $subject->$field;
        if (! is_string($value) && ! is_int($value)) {
            // array_key_exists errors on non-string non-int keys.
            return false;
        }
        // using array_keys() converts string numeric keys to integers, which
        // is *not* the behavior we want.
        return array_key_exists($subject->$field, $array);
    }
}