PHP清除HTML代码、空格、回车换行符的函数

清除HTML代码、空格、回车换行符的函数如下

function DeleteHtml($str)  {
         $str = trim($str);
         $str = strip_tags($str,"");
         $str = ereg_replace("\t","",$str);
         $str = ereg_replace("\r\n","",$str);
         $str = ereg_replace("\r","",$str);
         $str = ereg_replace("\n","",$str);
         $str = ereg_replace(" "," ",$str);
          return trim($str);
        }  

函数本身并没什么，有时候，会用就行。