login then back to the previous page

[mcmall]

Hi I am a newbie, and I am having some troubles need someone to help me out. I am currently having a login page.

heres my login form

<form action="member.php?action=logindo" method="post" id="form_login" name="form_login" >
<input type="text" name="txtloginname" id="txtloginname" tabindex="1"/>
<input type="text" name="txtloginpwd" id="txtloginpwd" tabindex="1"/>
<input name="save" id="save" value="submit">
</form>

How do I write a php page so that if someone login then the page will back to the previous page automatically. (LIKE EBAY)

should I use <input="hidde n" or ['_SERVER']['HTTP_REFERER']??

[Markus]

Have a hidden input on your form that stores the url of the page the form is on (relative or full). Then use the header() function to redirect to the page.

[Atli]

You could also just use the $_SERVER['HTTP_REFERER'] variable in your "member.php " page.

For example:
[code=php]
<?php
// Do your login stuff here...

header("Locatio n: ". $_SERVER['HTTP_REFERER']);
?>
[/code]
Note that the HTTP_REFERER is supplied by the client, so this might be used to feed bad URL's in to the redirect. (Although I fail to see how this might be abused for malicious purposes. (but then again, I am not thinking at 100% capacity at the moment :P))

[mcmall]

Thanks alot guys!!!!