过滤各种不合法标签数据

$preg_array = array(
        "/<[ ]+/si",
        "/<!--.*?-->/si",
        "/<(!.*?)>/si",
        "/<(/?html.*?)>/si",
        "/<(/?head.*?)>/si",
        "/<(/?meta.*?)>/si",
        "/<(/?body.*?)>/si",
        "/<(/?link.*?)>/si",
        "/<(/?form.*?)>/si",
        "/cookie/si",
        "/<(applet.*?)>(.*?)<(/applet.*?)>/si",
        "/<(/?applet.*?)>/si",
        "/<(style.*?)>(.*?)<(/style.*?)>/si",
        "/<(/?style.*?)>/si",
        "/<(title.*?)>(.*?)<(/title.*?)>/si",
        "/<(/?title.*?)>/si",
        "/<(object.*?)>(.*?)<(/object.*?)>/si",
        "/<(/?objec.*?)>/si",
        "/<(noframes.*?)>(.*?)<(/noframes.*?)>/si",
        "/<(/?noframes.*?)>/si",
        "/<(i?frame.*?)>(.*?)<(/i?frame.*?)>/si",
        "/<(/?i?frame.*?)>/si",
        "/<(script.*?)>(.*?)<(/script.*?)>/si",
        "/<(/?script.*?)>/si",
        "/javascript/si",
        "/vbscript/si",
        "/on([a-z]+)s*=/si",
        "/&#/si",
        "/<([a-zA-Z]+)[^>]*>/",
        "/</([a-zA-Z]+)[^>]*>/"
);