php敏感词过滤

函数

if (!function_exists('sensitive_words_filter')) {

    /**
     * 敏感词过滤
     *
     * @param string
     * @return string
     */
    function sensitive_words_filter($str)
    {
        if (!$str) return '';
        //敏感词路径
        $file =   'public/static/plug/censorwords/CensorWords';
        //引入
        $words = file($file);
        //循环替换
        foreach ($words as $word) {
            $word = str_replace(array("\r\n", "\r", "\n", "/", "<", ">", "=", " "), '', $word);
            if (!$word) continue;

            $ret = preg_match("/$word/", $str, $match);
            if ($ret) {
                return $match[0];
            }
        }
        return '';
    }
}

CensorWords文件内容自己定义