62 lines
1.5 KiB
PHP
62 lines
1.5 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Form\Util;
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abstract class FormUtil
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{
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static public function toArrayKey($value)
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{
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if (is_bool($value) || (string) (int) $value === (string) $value) {
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return (int) $value;
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}
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return (string) $value;
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}
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static public function toArrayKeys(array $array)
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{
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return array_map(array(__CLASS__, 'toArrayKey'), $array);
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}
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/**
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* Returns whether the given choice is a group.
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*
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* @param mixed $choice A choice
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*
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* @return Boolean Whether the choice is a group
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*/
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static public function isChoiceGroup($choice)
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{
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return is_array($choice) || $choice instanceof \Traversable;
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}
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/**
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* Returns whether the given choice is selected.
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*
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* @param mixed $choice The choice
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*
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* @return Boolean Whether the choice is selected
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*/
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static public function isChoiceSelected($choice, $value)
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{
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$choice = static::toArrayKey($choice);
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// The value should already have been converted by value transformers,
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// otherwise we had to do the conversion on every call of this method
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if (is_array($value)) {
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return false !== array_search($choice, $value, true);
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}
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return $choice === $value;
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}
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}
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