45 lines
1.0 KiB
PHP
45 lines
1.0 KiB
PHP
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<?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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/**
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* @author Bernhard Schussek <bschussek@gmail.com>
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*/
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class FormUtil
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{
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/**
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* This class should not be instantiated.
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*/
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private function __construct()
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{
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}
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/**
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* Returns whether the given data is empty.
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*
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* This logic is reused multiple times throughout the processing of
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* a form and needs to be consistent. PHP keyword `empty` cannot
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* be used as it also considers 0 and "0" to be empty.
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*
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* @param mixed $data
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*
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* @return bool
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*/
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public static function isEmpty($data)
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{
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// Should not do a check for [] === $data!!!
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// This method is used in occurrences where arrays are
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// not considered to be empty, ever.
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return null === $data || '' === $data;
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}
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}
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