Code for going back one page

joad

There's obviously the back arrow near the top left of screen to go back to the previous page, but if you wanted to put a link on your page, that said 'click here to go back one page', and you didn't want javascript involved at all, how would you do it please?

joad.

hezll

<a href="previous_page.php">here to go back one page</a>
i don't know what you really means,haha

joad

Yeah, sorry, should have explained that better, is there anyway, without using js at all, of putting code in to go back one page, regardless of what page you are currently on ?

HalfaBee

You would probably need to use sessions to keep track of which page your visitor last visited and use a link to the previous page.

joad

HalfaBee wrote:
You would probably need to use sessions to keep track of which page your visitor last visited and use a link to the previous page.

Many thanks - the input is appreciated. Any ideas how that could be done please ?

joad

Xager

$_SESSION['page_before'] = $_SESSION['current_page'];
$_SESSION['current_page'] = "/page/you/are/on/now.php";

echo('<a href="' . $_SESSION['page_before'] . '">Go back</a>');

If the user clicked a link you can use $_SERVER['HTTP_REFERER'] aswell, though it's not as accurate.

joad

Xager wrote:
$_SESSION['page_before'] = $_SESSION['current_page'];
$_SESSION['current_page'] = "/page/you/are/on/now.php";

echo('<a href="' . $_SESSION['page_before'] . '">Go back</a>');
If the user clicked a link you can use $SERVER['HTTP_REFERER'] aswell, though it's not as accurate.

Many thanks Xager, the help's much appreciated. One thing, where it says $SESSION['current_page'] = "/page/you/are/on/now.php";
the current page will not always be the same - in other words, from any page on the website, they should be able to go back to the previous page they were viewing.

lucianbeauty

ok i'm new to this so please help...

I have a page where the users can do a search. This search brings up a list of results and from that list they can click on a title to see the details of that particular result. I'm using mysql queries to query the database.

I have a problem where after clicking the title and view the results the user has to click the back arrow in the browser which gives a "page has expired" message and they have to click refresh to get the information on that page again.

I would like to include a back button on the details page to bring the user back to the previous page with the list of results. I tried using the above suggestions but couldn't get it to work.

Can anyone help?

Xager

joad wrote:
Many thanks Xager, the help's much appreciated. One thing, where it says $_SESSION['current_page'] = "/page/you/are/on/now.php";
the current page will not always be the same - in other words, from any page on the website, they should be able to go back to the previous page they were viewing.

You have to change /page/you/are/on/now.php in each document.

You could do the following:

$_SESSION['current_page'] = $_SERVER['REQUEST_URI'];

Let's say your're on http://mysite.com/page.php?page=test
Then $SERVER['REQUEST_URI'] would return "/page.php?page=test"
Here a refined version:

function updateCurrentPage(){
    if(isset($_SESSION['current_page'])){
        $_SESSION['page_before'] = $_SESSION['current_page'];
    }
    else{
        if($_SESSION['HTTP_REFERER'] != ""){
            $_SESSION['page_before'] = $_SESSION['HTTP_REFERER'];
        }
        else{
            $_SESSION['page_before'] = "/index.php";
        }
    }
    $_SESSION['current_page'] = $_SERVER['REQUEST_URI'];
}

Put this in a separate document and do the following on each page:

include("/path/document.php");
updateCurrentPage();

random code here

echo('<a href="' . $_SESSION['page_before'] . '">Go back</a>');

joad

Xager wrote:
You have to change /page/you/are/on/now.php in each document.

You could do the following:
$_SESSION['current_page'] = $_SERVER['REQUEST_URI'];
Let's say your're on http://mysite.com/page.php?page=test
Then $SERVER['REQUEST_URI'] would return "/page.php?page=test"
Here a refined version:
function updateCurrentPage(){
    if(isset($_SESSION['current_page'])){
        $_SESSION['page_before'] = $_SESSION['current_page'];
    }
    else{
        if($_SESSION['HTTP_REFERER'] != ""){
            $_SESSION['page_before'] = $_SESSION['HTTP_REFERER'];
        }
        else{
            $_SESSION['page_before'] = "/index.php";
        }
    }
    $_SESSION['current_page'] = $_SERVER['REQUEST_URI'];
}
Put this in a separate document and do the following on each page:
include("/path/document.php");
updateCurrentPage();

random code here

echo('<a href="' . $_SESSION['page_before'] . '">Go back</a>'); 

Hi Xager,

Thanks for your valued help, been trying and trying to understand, but am really confused - sorry ;-( Are you saying that there needs to be some includes as well please ?

Joad.