censor.php

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<?php
defined('XOOPS_ROOT_PATH') or die('Restricted access');

class MytsCensor extends MyTextSanitizerExtension
{
    function load(&$ts, $text)
    {
        static $censorConf;
        if (!isset($censorConf)) {
            $config_handler = & xoops_gethandler('config');
            $censorConf = $config_handler->getConfigsByCat(XOOPS_CONF_CENSOR);
            $config = parent::loadConfig(dirname(__FILE__));
            //merge and allow config override
            $censorConf = array_merge($censorConf, $config);
        }

        if (empty($censorConf['censor_enable'])) {
            return $text;
        }

        if (empty($censorConf['censor_words'])) {
            return $text;
        }

        if (empty($censorConf['censor_admin']) && $GLOBALS['xoopsUserIsAdmin']) {
            return $text;
        }

        $replacement = $censorConf['censor_replace'];
        foreach ($censorConf['censor_words'] as $bad) {
            $bad = trim($bad);
            if (!empty($bad)) {
                if (false === strpos($text, $bad)) {
                    continue;
                }
                if (!empty($censorConf['censor_terminate'])) {
                    trigger_error("Censor words found", E_USER_ERROR);
                    $text = '';
                    return $text;
                }
                $patterns[] = "/(^|[^0-9a-z_]){$bad}([^0-9a-z_]|$)/siU";
                $replacements[] = "\\1{$replacement}\\2";
                $text = preg_replace($patterns, $replacements, $text);
            }
        }
        return $text;
    }
}

?>