Check for PHP sessions in AJAX? (Possibly stupid question)

[LemonInflux]

I want a script that allows users to post replies to a news article using AJAX. However, I only want them to be able to if they have set a name to log in as.

 

So, before they see the options to post, I need a screen where they can enter a username to be known as.

 

BUT, when they enter this, I need:

 

A) the AJAX page to only show the reply posting options when the user has a session (which is created when the user submits a username to be known by)

B) the PHP page to only work when the user has a session

 

I presume this means I need to set a PHP session using javascript, and a session that works in javascript and PHP.

 

Sorry if this is unclear, but how do I do this?

 

Do sessions work in PHP and Javascript anyway?

 

Thanks in advance,

 

Tom

[Wolphie]

Well, AJAX makes synchronous calls to PHP. all of the server side processing is done via PHP, so you'd have to check if that session exists using PHP; If so, then execute whatever and if not return an error.

[XoSilenceoX]

This can actually be done pretty simple with AJAX have the DIV default load the username form. Then once submitted via ajax all you have to do is have it load another page with the posting form.