How to return to previous pages in Multi-Chinese language Original

asp:

Copy the codeThe code is as follows:

<a href="<%=("Http_REFERER")%>">preivous page</a> Or use pictures such as: <img src=http:///Get/asp/00010006/"" alt="<%=("HTTP_REFERER")%>">

js:Just

php:

Copy the codeThe code is as follows:

$url=$HTTP_SERVER_VARS["HTTP_REFERER"];       
  if($url)   {       
        $url_resource=$url;     
  }       
  else{       
$url_resource="Enter directly from the browser";
  }

Note the premise of getting the previous page, which is usually connected through a, and direct input is useless.