is there any way to save JavaScript variable into session value? Here is my code:
function changePage(newLoc)
{
subid = newLoc.options[newLoc.selectedIndex].value
}
I need to save subid into session value.
Thanks, in advance.
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3 Answers
You can write cookies using JavaScript. Quirksmode has a really good write up on these: http://www.quirksmode.org/js/cookies.html
This will save you the need of having to do anything server side.
You can also look at the HTML5 implementation of DOM storage such as localStorage or sessionStorage: https://developer.mozilla.org/en/DOM/Storage
Comments
You will need to use AJAX. I would advise you to use jQuery.
function changePage(newLoc)
{
subid = newLoc.options[newLoc.selectedIndex].value
$.ajax({
url: 'ajac.php',
data: {"subId":subid},
type: 'post',
success:function(data){
//Succes!
}
});
}
And in PHP:
$_SESSION['subId'] = $_POST['subId'];
4 Comments
Bergi
Do not use jQuery just for one simple ajax statement!
Derk Arts
If you're not familiar with AJAX it makes your life a lot easier. If he want the optimize the code later he can always write a seperate AJAX function.
Ajay
ok fine i use this session varible into php so when will destory this session
Derk Arts
Excuse me? I don't understand your question.
You can save values to the server
- by using an independent request every time the value changes (which would mean ajax)
- or by modifying the request you send to the server when changing your location (only when you navigate to a page on your own site, of course)
I would use cookies for that. They can be read and saved by both local (js) and serverside (php) script, and are exchanged each time you load your page (the second method).
