safetext.php 1.63 KB
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<?php
/**
 * Pieforms: Advanced web forms made easy
 * Copyright (C) 2006-2008 Catalyst IT Ltd (http://www.catalyst.net.nz)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @package    pieform
 * @subpackage rule
 * @author     Robert Lyon <robertl@catalyst.net.nz>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL version 3 or later
 * @copyright  For copyright information on Mahara, please see the README file distributed with this software.
 *
 */

/**
 * Checks whether the field has a safe text string.
 *
 * @param Pieform $form    The form the rule is being applied to
 * @param string  $value   The value of the field
 * @param array   $element The element to check
 * @param string  $check   Whether to check the element
 * @return string         The error message, if the value is invalid.
 */
function pieform_rule_safetext(Pieform $form, $value, $element, $check) {
    if ($value != '') {
        if ($value != strip_tags(clean_html($value))) {
            return $form->i18n('rule', 'safetext', 'invalidchars', $element);
        }
    }
}