url rewrite in php

RewriteRule ^(.*)_([^]+).htm/([0-9.]+)$ a开发者_JS百科.php?f=$1&t=$2&amt_from=$3 [NC]

I have form call a.php with 3 parameters. I am able to use the above rewrite rule, and a_b.htm/c does work.

My problem is when the user click a submit button on the form, they still see a.php?f=$1&t=$2&amt_from=$3

How do I fix that?

Thanks a lot.

You need your form to generate the correct URL. This is only doable with some Javascript, but basically works like this:

<form action="a.php" method="GET" onsubmit="rewrite_form(event);">
   <input name=f value=123>
   <input name=t value=ABCABC>
   <input name=amt_from value=XYZXYZXYZ>
   <input type=submit>

<script type="text/javascript">
   function rewrite_form(e) {    
      var form = document.forms[0];   // .getElementById("form1");
      window.location = '' + form.f.value + '_' + form.t.value + '.htm/' + form.amt_from.value;            
      if (e && e.preventDefault) { e.preventDefault(); }
      return false;
   }
</script>

So basically the form submit generates the nicer URL you want. If the browser doesn't support Javascript, it will fall back to the more elaborate GET-parameterized URL.

Le Update: The form element access was incorrect, you just need document.forms[0].fieldname.value usually. And I've moved the URL construction out into a separate function. The onsubmit= method works well enough with event.preventDefault(); in Opera/Chrome/Firefox.

That is because you are still submitting with a method="get", so the form creates that form of url..

Use post instead if you dont want the user to see the submitted values in the url