Solved

Close PHP session without saving

Posted on 2009-04-02
6
341 Views
Last Modified: 2013-12-13
I have a php that will be running for a couple minutes. I need to update a variable in the session and continue processing every 20 seconds or so.

This way I can have another script update a screen on the first scripts progress every 20 seconds or so.

I need to close the session without saving, so not to undo any changes that may take place while the script is processing. Then I need to update and save the session to keep the window that the session is open to a minimal.

How do I close an open session without saving it?

0
Comment
Question by:nbcit
  • 3
  • 3
6 Comments
 
LVL 6

Expert Comment

by:MatthewP
ID: 24050429
Im not completely sure I understand, but if you're just reporting on session data and not setting anything, it shouldn't update anyway unless you specifically set someting in it in this script. Your other script should be able to continue uninterrupted whilst the other one reports on it. Why do you need to 'close' the session, can't you just leave it after reporting?

Closing sessions is done with something like session_destroy() - if you dont call this it should be fine?

Matt
0
 

Author Comment

by:nbcit
ID: 24050556
In the long script every itterattion I want to update the progress in the session. I know how many loops to need to complete. Each loop takes 10 seconds or so. And if I have 100 loops I know each time I loop I will be 1% done. As the script progresses I want to update this value, so a second script can update the page on progress.
0
 
LVL 6

Accepted Solution

by:
MatthewP earned 500 total points
ID: 24050840
Ah I see what you mean now, the session isn't released by the first script so that you can get to it. You're best off every iteration writing the value out to a text file and reading the text file from the other script. So each iteration, do file_put_contents("counter.txt",$value");. Then read it from your other script which refreshes every so long using $filedata=file_get_contents("counter.txt");



0
Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

 
LVL 6

Expert Comment

by:MatthewP
ID: 24050866
Or you can of course write the data to a database and retrieve it, any method of storing data other than sessions should work I think. a text file with one integer in it will give you the lowest overhead on the server.
0
 

Author Comment

by:nbcit
ID: 24054706
I am thinking the text file will be better than:
            session_write_close();
Start Loop
                  session_start();
Save Stuff
            session_write_close();
End Loop
0
 

Author Comment

by:nbcit
ID: 24098356
Saving a file seemed to do the trick.
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Part of the Global Positioning System A geocode (https://developers.google.com/maps/documentation/geocoding/) is the major subset of a GPS coordinate (http://en.wikipedia.org/wiki/Global_Positioning_System), the other parts being the altitude and t…
OverviewThis article demonstrates a simple search form using AJAX. The purpose of the article is to demonstrate how to use the same code to render a page and javascript (JQuery) and AJAX to make subsequent calls to refine the results. The princip…
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…
The viewer will learn how to create a basic form using some HTML5 and PHP for later processing. Set up your basic HTML file. Open your form tag and set the method and action attributes.: (CODE) Set up your first few inputs one for the name and …

831 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question