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1 <?php 2 3 /** 4 * Joomla! Content Management System 5 * 6 * @copyright (C) 2019 Open Source Matters, Inc. <https://www.joomla.org> 7 * @license GNU General Public License version 2 or later; see LICENSE.txt 8 */ 9 10 namespace Joomla\CMS\Form\Filter; 11 12 use Joomla\CMS\Form\Form; 13 use Joomla\CMS\Form\FormFilterInterface; 14 use Joomla\Registry\Registry; 15 16 // phpcs:disable PSR1.Files.SideEffects 17 \defined('JPATH_PLATFORM') or die; 18 // phpcs:enable PSR1.Files.SideEffects 19 20 /** 21 * Form Filter class to unset 22 * 23 * @since 4.0.0 24 */ 25 class UnsetFilter implements FormFilterInterface 26 { 27 /** 28 * Method to filter a field value. 29 * 30 * @param \SimpleXMLElement $element The SimpleXMLElement object representing the `<field>` tag for the form field object. 31 * @param mixed $value The form field value to validate. 32 * @param string $group The field name group control value. This acts as an array container for the field. 33 * For example if the field has name="foo" and the group value is set to "bar" then the 34 * full field name would end up being "bar[foo]". 35 * @param Registry $input An optional Registry object with the entire data set to validate against the entire form. 36 * @param Form $form The form object for which the field is being tested. 37 * 38 * @return mixed The filtered value. 39 * 40 * @since 4.0.0 41 */ 42 public function filter(\SimpleXMLElement $element, $value, $group = null, Registry $input = null, Form $form = null) 43 { 44 return null; 45 } 46 }
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