[RESOLVED] Go Back Question

Muncey

I have made a delete script which deletes messages and once deleted it comes back "this message has been deleted", how do i make it so i can add "click here to go back to where you was".

A bit more info, this is for a simple forum system which has topics which change the url to like topic.php?id=5 so how do i make it so it can link or automatically go back to that page?

You cannot put <a href="view.php" because each topic has a different view.php due to the end bit.

Thanks in advanced.

leatherback

Javascript way:
<a href="#" onClick="history.go(-1)">Back</a>
<input type=button value="Back" onClick="history.go(-1)">

php way:
use the $_SERVER['referrer'] (I think, check [man]predefined[/man] variables
Or store the last ID in a session, and use that to create the right link

Muncey

I have a page saying "are you sure you want to do this" so going back one would just bring them back to that page, i changed the number in the JS script and it didn't change.

PHP... can you explain these a bit more please, im new to php... fast learner though 😃

leatherback

OK, in each page that you load normally, you place a variable in the session.

You start a session by placing

session_start();

At the top of the page, before ANY output is send to the browser. (I usually do it right after the <?php tags:
<?php
session_start();

The next thing is, when you have your pageid to store the page:
$_SESSION['page'] = $pageid;

That's it.

Make sure you do NOT do this when in your delete page. and you can than link to the previous:
<a href="index.php?page=".$_SESSION['page'].">back</a>";

Muncey

Ok i understand that and ive added it in where necessary but it's coming up with..

topicID= with no number. I editing the $pageid to $topicID which is the variable in the function which is the id.

I think theres a problem with the session, one quick question... if i have a file with multiply php tags in, do i have to put the session_start(); in all of them.

For example i include a lot of html in my functions file which means i need to end the php tag (?>) and then start it up again when needed, does that mean i have to put the session_start(); again?

leatherback

No. Just once will do fine.

Basically you are telling your browser to look for a session (PhP will handle how and where variables are stored, no need to worry about that).

Probably easiest to doa little trial for yourself:

Create a new page, with only

<?php
session_start();

$_SESSION['page'] = 'test';
?>
<a href="page2.php">next</a>

in it.
Then in page2 you just put:

<?php
print_r($_SESSION);
?>

And see what you get.

After playing with that a bit, you have a better understanding, and do not need to mess with your current setup.

Muncey

Ok i'll have a play, thanks!

leatherback

Just mark the thread resolved -if it is for now- using the thread tools.

(You are probably better of starting a new thread if this doesn't work, as some people are put off by long threads)

Muncey

Ok ill do that, just one more question...

i copied and pasted the code then opened them, went next and got nothing...

Did i need to edit anything?

Edit: no worries, just added session start to the second page.

Thanks again

leatherback

-crap- Yeah
You need a session_start(); in the next page too.. Sorry bout that.

Muncey

Lol np, just editing my post lol...

leatherback

Enjoy the play

Muncey

It worked, just to let you know.

What i did was in the URL i put '".$_SESSION['page']."' which was making the url look like this:

topicID='1' instead or topicID=1.... and it being '1' just messed up and it showed nothing... i hate these kind of errors where you just look and look for ages and then you find it being two little things like that. All part of learning though

Thanks for all your help, very much appreciated.