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 Topic: Redirect to another webpage in PHP? |
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kr33
Joined: 19 Sep 2006
Posts: 64
Location: South Africa
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 Posted: Tue 31 Oct '06 16:15 Post subject: Redirect to another webpage in PHP? |
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Hi,
How would I redirect to a different webpage after logging into my website?
Actually, when the user logs onto my website with an incorrect user id and/or password, instead of going to the main page, it must redirect to an error page.
How would I do this in PHP?
Thanks
| Quote: | | Every man has to go through hell...to reach his paradise |
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James Blond
Moderator
Joined: 19 Jan 2006
Posts: 7371
Location: Germany, Next to Hamburg
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| Posted: Tue 31 Oct '06 18:00 Post subject: |
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| Code: |
/* Redirect to another page in the same folder */
$host = $_SERVER['HTTP_HOST'];
$uri = rtrim(dirname($_SERVER['PHP_SELF']), '/\\');
if($login=="1"){
$extra = 'page.php';
}
else
{
$extra = 'error.php';
}
header("Location: http://$host$uri/$extra");
exit;
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hope that helps
Instead of the page.htm you could also include a page and put the header and exit under the error.php  |
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Brian
Joined: 21 Oct 2005
Posts: 209
Location: Puyallup, WA USA
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| Posted: Tue 31 Oct '06 20:01 Post subject: |
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| Just remember that you need to use header( 'location... prior to kicking out other content type headers, or the re-direction wont happen. |
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James Blond
Moderator
Joined: 19 Jan 2006
Posts: 7371
Location: Germany, Next to Hamburg
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| Posted: Tue 31 Oct '06 20:21 Post subject: |
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| Brian wrote: | | Just remember that you need to use header( 'location... prior to kicking out other content type headers, or the re-direction wont happen. |
What do you mean?
this example is taken from php.net and it works great I use it in several pages on windows and *nix systems. |
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Brian
Joined: 21 Oct 2005
Posts: 209
Location: Puyallup, WA USA
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| Posted: Tue 31 Oct '06 20:38 Post subject: |
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If you have already sent, for example ...
| Code: | header( 'content-type: text/html' );
echo 'test';
header( 'location: someurl.com' );
exit; |
... it wont redirect.
I use a little more robust solution that takes into account not using globals, using E_ERROR = ALL, and so on.
| Code: | <?php
/*
at the top of the page before any other headers are sent or any echo / print statemetns ... and so on ...
*/
// here I check if the var is passed or not, I assume you have
// E_ERROR set to all or even notify, I like clean code
$pass = ( isset( $_POST['pass'] ) ) ? $_POST['pass'] : false;
$user = ( isset( $_POST['user'] ) ) ? $_POST['user'] : false;
##########################################
#
# do your validation of submitted
# form data here
#
# assume for example you return
# $valid = 1; for valid login
#
##########################################
// is it a valid login
switch( $valid ) {
case '1':
$loc = $your_logged_in_url;
break;
default:
case( $valid != 1 ):
$loc = $your_not_logged_in_url;
break;
}
header( 'location: ' . $loc );
// From here you could put in some HTML to help if the header
// redirect fails. Use Meta Refresh and a clickable link as fail
// overs in case the redirect fails for any reason.
exit;
?> |
Last edited by Brian on Tue 31 Oct '06 21:51; edited 1 time in total |
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kr33
Joined: 19 Sep 2006
Posts: 64
Location: South Africa
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| Posted: Tue 31 Oct '06 21:42 Post subject: |
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Thanks guys, I'm sure it will help.
I'm developing a major website for this company i'm working with and i'm sorta learning a few things over and above my current PHP knowledge.
I got php working on Win Server 2k3, using cgi.
And guys don't fight, we're all part of the Elite scripters or coders around the world, although i'm new to php, I've learnt a HELL of a lot from you guys and mostly by trial and error.
So I hope to contribute more soon and become one of the truly Elite 
Thanks |
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