[php] 過濾多餘換行、html標籤、空格

function DeleteHtml($str)

{

　　$str = trim($str); //除去字串首尾空白

　　$str = strip_tags($str,""); //除去html標籤

　　$str = ereg_replace("\\t","",$str);

　　$str = ereg_replace("\\r\\n","",$str);

　　$str = ereg_replace("\\r","",$str);

　　$str = ereg_replace("\\n","",$str);

　　$str = ereg_replace(" "," ",$str);

　　return trim($str);

}