Getting Session-variables To PHP
Nov 29, 2009
I'm just beginning with JavaScript (and Ajax). My loginscript now works with Ajax - that is; the script is sending a request to the servers PHP script to check username and password, but I wonder what that script should return - and how to use that response. Either XML or pure text: The response is now "false" if the user couldn't log in for some reason, and the users ID and real name if the login went well...
But then the problem: if login IS ok - so that the users ID and real name is returned from the serverscript - I would like to store those variables in a session variable ($_SESSION in PHP). How do I get those variables back to the client script from JavaScript?
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Jun 28, 2007
I had written code which created a shopping cart into an array using
vbscript and then transferred the information into a session
variable. However what I didn't know was that deleting/manipulating
information in an array using vbscript was not that easy.
In doing some reading and research it seemed that js was more flexible
in this area. My questions:
1) if I want to store cart items/details in an array and session
variable do I need to use only js (and can not switch back and forth
from vbscript and js)
2) if I have an array 6x12 and want to delete all the items
associated with say arrayItem[1, 0...12] what is the proper coding to
delete...is it splice?
3) any good articles about js, arrays, and multidimensional arrays
for a beginner?
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Jan 21, 2009
How to pass (well more like bridge) session information to the client side from server side.
Right now, what I'm basically doing is echoing the userID and the username into a method in JavaScript tag at the bottom of every page.
The reason why I am doing this is simply for AJAX-related interactivity.
This is an example of what the code looks like:
Code:
A) It requires JavaScript code to be pasted within the HTML document (its non-external).
B) It requires the code to be echoed in EVERY PAGE.
C) A PHP Script or Class must maintain the responsibility of printing the session values.
D) The variable data cannot be accessed from any imported javascript files prior to where it was printed.
Now, I'm wondering about using Cookies. This would benefit me since I don't have to inject any ugly javascript code into the HTML output. I can also remove the PHP script that echoes the values and the changes will be purely handled in PHP (cookies can be updated!).
The only issue that's stopping me is simply security. Since cookies can be edited very easily on the client side, then the data can be changed. But then again so can the JavaScript (using a tool like Grease Monkey).
Once again, I am aware to never ever to trust the client side data without any validation; therefore using some sort of hash checksum, the cookie data can be compared to its PHP equivalents.
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Aug 2, 2009
My knowledge of programming is very limited. I would like to calculate the average of session variables in Interpreted Java. However, some of session variables may not always be available. The first thing I do is remove the non numerical portion of the session variables:
String [] variables = {"A",'B','C','D','E'};
i = 0;
Iterate through each variable in the array above
while (i < variables.length){
Get the variables to be fixed
value = session.getVariable(variables[i]);
Log the UNFIXED values
session.log("UNFIXED: " + variables[i] + " = " + value);
if(value != null){
Remove non-numerical elements
value = value.replaceAll("\\D", "");
Set variables with new values
dataRecord.put(variables[i], value);
session.setVariable(variables[i], value);
Log the FIXED values
session.log("FIXED " + variables[i] + " = " + session.getVariable(variables[i]));
} i++;
}
Then I make sure the session variables can be treated as numbers:
A = Integer.parseInt(session.getVariable("A")).intValue();
B = Integer.parseInt(session.getVariable("B")).intValue();
C = Integer.parseInt(session.getVariable("C")).intValue();
D = Integer.parseInt(session.getVariable("D")).intValue();
E = Integer.parseInt(session.getVariable("E")).intValue();
Are they still alive?
session.log("A**" + A + "**");
session.log("B**" + B + "**");
session.log("C**" + C + "**");
session.log("D**" + D + "**");
session.log("E**" + E + "**");
I would like to calculate the average of A and B and save it as session variable AB, calculate the average of C and D and save it as session variable CD, and then the average of AB, CD, and E. Here's the weird part; AB, CD, and or E will not always be available. For example, AB will not be available so I need to calculate the average of CD and E or E will not be available so I need to calculate the average of AB and CD. As I said, my knowledge of programming is very limited so if you could provide code snippet with explanation of each step and where to plug in my session variables.
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Apr 17, 2011
I have a php page (target_market.php), with a form that has 34 checkboxes. I would like the be able to click the boxes and have JS post the 'checked' value to a php session varibale when a button is clicked. If the user navigates away from the page and returns, the pages needs to reload the checkbox session variables.
How do I post the 'checked' value as either YES or NO using JS to another page (target_session.php), so that i can add them to database at a later stage?, but also retrieve the session variables and update the check boxes should the user come back to the target_market.php page?
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Jul 23, 2005
I would like to set a Session variable to a value. In Vbscript it should be
Session("ZoomValue")=500
How can I set this session variable by using Javascript?
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Oct 30, 2006
I am having difficulty on maintaining session when using ajax.
I first load a page with a session genterated. But since AJAX is a
client side activity where I sent an AJAX request to an url without any session
info. Of course, the server will create a new session. Even though I
can write the session id into the first page where I made ajax calls, it is not a secure way...
How do people deal with this problem?
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Mar 16, 2009
I know how to access Server Side Session variable at client side(JS)..But i want to know how to Set Sessin varable at Clinet side(JS) & access its value at Server side.
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Mar 16, 2009
I know how to access Server Side Session variable at client side(JS)..But i want to know how to Set Sessin varable at Clinet side(JS) & access its value at Server side..
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Jul 23, 2005
Is there a way to check for to see if the user has session cookies
enabled? I know how to check to see if they have cookies in general enabled,
but how do you test for just session cookies?
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Jul 23, 2005
Using window.open(), the exec'd child window shares session information with
the parent. Is there a way in JavaScript to exec a new browser window that
does not share?
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Jan 17, 2006
i am working on a java and HTML based web application. now i am storing
session variables. is there a way for me to pass on these variables to
javascript. what i am getting at is, i need JS to do something based on
the user variable.
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May 10, 2007
there a way of updating session variable in JS?
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Jun 28, 2006
Cookie name is "viewStatus" value saved is 1
Closing all windows should end the session but on the reopening cookie page I find the session cookie is still alive.
If I alert(document.cookie) I get viewStatus = 1
If I rename the cookie to say "vStatus" and close the window when I reopen it and alert(document.cookie) I get
viewstatus=1 vStatus=1
any ideas?
This only happens in IE ( as always)
PS
I just did a little experiment, I closed all windows, created a new file with just
<script>
alert(document.cookie)
</script>
in it then opened the file and still got
viewstatus=1 vStatus=1
I know I did not have this problem before because I have a session cookie example on my site and that does not work now so is it something new that is wrong with IE.
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Feb 26, 2005
How do you save a session value in JavaScript?
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Dec 5, 2009
In my project i am using ajax and jquery. After going to a page via ajax without page reload i want to see the same page if the user refresh the browser. I used the cookie plugin inorder to solve. As it is not safe i am trying to do the same using session. I have dowloaded the jquery session plugin and initialized the session variable using the below satements.
var SESSION_URL = $.session("current_url",Url);
var SESSION_DATASTRING = $.session("dataString",dataString);
and i am getting the session value in the same jquery $(function) where it is initialised, through alert($.session("current_url");
But i am not getting this session value in an another jquery event like
window.load(function(){
});
How can i get the initialized session value in an another event.
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Jul 18, 2009
I currently have a form that asks for certain info. When the user enters and then submits it, a javascript script sends the info to a php form and then php does its thing. While doing its thing, php tries to change a php session. I am wondering if there is a way to change the php session, and have it take effect on the user end without a refresh. So if the user has a session for their name (Bob), then goes to this form and changes it to Joe, then session the user has will be changed from Bob to Joe without the page reloading. Is this possible?
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Nov 9, 2006
I´m using this code to avoid the "click to activate" a flash file, it does work, but it seems like the browser is still loading something (not flash), it is related to this code, since removing it, the browser stops loading.
objects = document.getElementsByTagName("object");
for (var i = 0; i < objects.length; i++)
{
objects[i].outerHTML = objects[i].outerHTML;
}
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Aug 19, 2010
How can we check whther a session has expired in javascript??
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Nov 2, 2010
I'm working on a big JS project and need to pull the session ID out (JUST the ID number, not the whole thing that comes out of DOM). For example:
[Code]...
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Apr 2, 2009
Anyone know how to get Javascript variables into PHP variables or a MySQL database? Full question in the PHP section.
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Feb 3, 2011
I have some JavaScript which is splitting out the different variable elements from the URL.Now, how do I set the internal variables?Then I want to set the variable ScriptHeading to be Change and the variable ScriptType to be NewThread.I keep finding all sorts of lovely code showing how to split out the various sections in many different ways, but I can't find anything on how to actually set these variables.
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Dec 15, 2005
I am trying to create/update a Php Session with Javascript to confirm
if users have Javascript enabled.
My first thought was to create a Javascript that writes a script tag
referencing a php page, which sets a $_SESSION variable.
javascript.js:
<script type="text/javascript">
<!--//
document.write('<s'+'cript type="text/javascript"
src="javascript.php"></s'+'cript>');
//-->
</script>
javascript.php:
<?php
session_start();
$_SESSION['javascript'] = 'enabled'
?>
I can see that both the javascript.js and javascipt.php files are
executing from the web logs, but when I try to query the
$_SESSION['javascript'] variable from another page $_SESSION is empty.
Is it possible to create/update a Php Session with Javascript?
Might it be done using URLEncoded URL, Javascript XMLHttpRequest, or
something of the like?
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Feb 22, 2011
I am trying to reference a session variable inside some JQuery code. Theseexamples below arewhat I am using currently just to try and see if I can get something to display and nothing shows up.[code]Just to make sure an alert works, I threw in a alert("hi"); which works fine. It is when I try to write out the session variable it fails.
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Jun 29, 2009
Does anyone know if there is going to be a jQuery workshop the day before AJAX experience in Boston on September 14-16th, 2009?
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May 2, 2010
I am trying to use jQuery AJAX. What my requirement is, i wish to load user names from DB in dataset, convert it to JSON format and store it in memory or using jQuery data for use while a user is browsing my site, i.e for a session. This way I can use autocomplete or my own code to display data to user.
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