I've created a session variable and stored a value "123456" in it. I need that value on another page that is called using ajax. I cannot access the session variable when making the ajax call. session_start() is in top of both pages. I even tried to write the actual session value to a txt file from the page that the ajax function calls, but the file turned out blank.
What to do?
You cannot access PHP session info from Javascript (I'm assuming that this is what you're trying to do). You can pass it in as a hidden field or in the JS (dynamically added with PHP) to the second page, add it to a regular cookie, or provide it from PHP as a response to an AJAX request, but I think those are your only options.