How to redirect to the previous page?

[TheDust]

I am looking for a way that when a user submits a form they are sent to a page saying "processing..." or something like that and then are sent back to the page they were just at.

I tried sending along the previous page's URL with PHP_SELF like so:

<input type=&quot;hidden&quot; name=&quot;formHttpReferer&quot; value=&quot;<?php echo &quot;$PHP_SELF&quot;; ?>&quot; />

Then on the page I have a redirect with the variable &formHttpReferer as the URL:

header(&quot;Refresh: 3; URL=$formHttpReferer&quot;

This refreshes the page, but remains on the current processing page rather than going back to whence it came. Could anyone help out??

 

[spookie]

u can use $HTTP_REFERER global variable of PHP.
in this case u dont need to send anything as a hidden value.

spookie --------------------------------------------------------------------------
I never set a goal because u never know whats going to happen tommorow.

 

[TheDust]

I thought I had heard less and less browsers are supporting this variable, because of privacy issues. Has anyone else heard this?

 

[spookie]

yes thats true..some old browsers dont support this predefined variable and if ur behind firewall it can give u a empty string(i am not too sure abt this..).

if the twoi pages(the form page and the page that says processing) are different, why dont u pass the filename as hidden variable to the second page and then redirect using that variable..
ie.
<input type=&quot;hidden&quot; name=&quot;formHttpReferer&quot; value=&quot;

http://pathtoform.php&quot;>

spookie


--------------------------------------------------------------------------
I never set a goal because u never know whats going to happen tommorow.

 

[kubla]

I don't often like to use javascript, but in this case, you're really interested in the client-side history... I suppose you might do something with sessions, but far easier would be to use:

<a href=&quot;javascript:history.go(-1)&quot;>go back a page</a>

I haven't tried inserting that into a header... perhaps it's doable...

http://www.robertgraves.org

 

[Leozack]

I developed a system that keeps track of the last page you were on that was different to the page you're now on, both with ?arguments=1 and without arguements. These 2 pages demonstrate it =) I've hardly used it myself, heh, as normally back operations know where they're supposed to be going anyway and you can specify it. I also found $php_self (or is it $phpself) doesn't work for me, either it's my config or the config on my webserver but I don't use it I use $_SERVER['PHP_SELF'] instead.

page 1
-----------------------------

<?
	if ($prev_self != $_SERVER['PHP_SELF']) {
		$old_self = $prev_self;
		$prev_self = $_SERVER['PHP_SELF'];
	}
	if ($prev_request != $_SERVER['REQUEST_URI']) {
		$old_request = $prev_request;
		$prev_request = $_SERVER['REQUEST_URI'];
	}
	$rand1 = rand(1,10);
	$rand2 = rand(1,10);
	echo &quot;<font color=red>Current Self = &quot;.strtolower($_SERVER['PHP_SELF']).&quot;</font><br>&quot;;
	echo &quot;<font color=red>Current Request = &quot;.strtolower($_SERVER['REQUEST_URI']).&quot;</font><br>&quot;;
	echo &quot;<font color=green>Prev self = $prev_self</font><br>&quot;;
	echo &quot;<font color=green>Old self = $old_self</font><br>&quot;;
	echo &quot;<font color=blue>Prev request = $prev_request</font><br>&quot;;
	echo &quot;<font color=blue>Old request = $old_request</font><br>&quot;;
?>
<form action=&quot;fromtest.php?<?= $rand1 ?>,<?= $rand2 ?>&quot; method=&quot;post&quot;>
<input type=&quot;hidden&quot; name=&quot;prev_self&quot; value=&quot;<?= $prev_self ?>&quot;>
<input type=&quot;hidden&quot; name=&quot;old_self&quot; value=&quot;<?= $old_self ?>&quot;>
<input type=&quot;hidden&quot; name=&quot;prev_request&quot; value=&quot;<?= $prev_request ?>&quot;>
<input type=&quot;hidden&quot; name=&quot;old_request&quot; value=&quot;<?= $old_request ?>&quot;>
<input type=submit value=test1.php>
</form>
<form action=&quot;fromtest2.php?<?= $rand1 ?>,<?= $rand2 ?>&quot; method=&quot;post&quot;>
<input type=&quot;hidden&quot; name=&quot;prev_self&quot; value=&quot;<?= $prev_self ?>&quot;>
<input type=&quot;hidden&quot; name=&quot;old_self&quot; value=&quot;<?= $old_self ?>&quot;>
<input type=&quot;hidden&quot; name=&quot;prev_request&quot; value=&quot;<?= $prev_request ?>&quot;>
<input type=&quot;hidden&quot; name=&quot;old_request&quot; value=&quot;<?= $old_request ?>&quot;>
<input type=submit value=test2.php>
</form>

page 2
-----------------------------

<?
	if ($prev_self != $_SERVER['PHP_SELF']) {
		$old_self = $prev_self;
		$prev_self = $_SERVER['PHP_SELF'];
	}
	if ($prev_request != $_SERVER['REQUEST_URI']) {
		$old_request = $prev_request;
		$prev_request = $_SERVER['REQUEST_URI'];
	}
	$rand1 = rand(1,10);
	$rand2 = rand(1,10);
	echo &quot;<font color=red>Current Self = &quot;.strtolower($_SERVER['PHP_SELF']).&quot;</font><br>&quot;;
	echo &quot;<font color=red>Current Request = &quot;.strtolower($_SERVER['REQUEST_URI']).&quot;</font><br>&quot;;
	echo &quot;<font color=green>Prev self = $prev_self</font><br>&quot;;
	echo &quot;<font color=green>Old self = $old_self</font><br>&quot;;
	echo &quot;<font color=blue>Prev request = $prev_request</font><br>&quot;;
	echo &quot;<font color=blue>Old request = $old_request</font><br>&quot;;
?>
<form action=&quot;fromtest.php?<?= $rand1 ?>,<?= $rand2 ?>&quot; method=&quot;post&quot;>
<input type=&quot;hidden&quot; name=&quot;prev_self&quot; value=&quot;<?= $prev_self ?>&quot;>
<input type=&quot;hidden&quot; name=&quot;old_self&quot; value=&quot;<?= $old_self ?>&quot;>
<input type=&quot;hidden&quot; name=&quot;prev_request&quot; value=&quot;<?= $prev_request ?>&quot;>
<input type=&quot;hidden&quot; name=&quot;old_request&quot; value=&quot;<?= $old_request ?>&quot;>
<input type=submit value=test1.php>
</form>
<form action=&quot;fromtest2.php?<?= $rand1 ?>,<?= $rand2 ?>&quot; method=&quot;post&quot;>
<input type=&quot;hidden&quot; name=&quot;prev_self&quot; value=&quot;<?= $prev_self ?>&quot;>
<input type=&quot;hidden&quot; name=&quot;old_self&quot; value=&quot;<?= $old_self ?>&quot;>
<input type=&quot;hidden&quot; name=&quot;prev_request&quot; value=&quot;<?= $prev_request ?>&quot;>
<input type=&quot;hidden&quot; name=&quot;old_request&quot; value=&quot;<?= $old_request ?>&quot;>
<input type=submit value=test2.php>
</form>

_________________________________
Leozack

MakeUniverse($infinity,1,42);

 

[TheDust]

Cool, thanks for all the feedback guys. Yeah, I did start just using a hiddent form value of &quot;formHttpReferer&quot; for the value of the page before. I couldn't get PHP_SELF to work either, but I just cleaned the string to get the filename, since they are all located in the same directory anyways

It works now for the most part. Leozack- I'll definately look into your technique. Thanks a lot, man. All you guys- thanks!

Dust