Generating reports, variable is undefined.

[rendanime]

I need your help, i have designed a system using PHP. Now i want to create a report for projects. Currently the system can genarate report for all available project ( i manage to do this because is easy - just take everything in the table). What i want to do is to make a report for one project. I placed a print button in a project grid - when a user click that button, i want the system to automatically pick up the projectId for that current project.
What i want is somthing like this: When you want the name of current user, you can do it like this:
$user_id = $this->session->userdata('user id');

So now i have things like this:
$project_detail s = $this->projectmodel->retrieve_by_pk ey($idField);
How do i pick up $idField automatically?? ?? $idField =??????

Will appriceate your help

[pbmods]

Heya, rendanime.

What do you want your code to do? Give an example.
What is your code doing that you don't want it to do? Give an example.
What is your code *not* doing that it is supposed to? Give an example.

[rendanime]

Heya, rendanime.

What do you want your code to do? Give an example.
What is your code doing that you don't want it to do? Give an example.
What is your code *not* doing that it is supposed to? Give an example.

Hi pbmods, Thanx : when the program executes the following code:
$project_detail s = $this->projectmodel->retrieve_by_pk ey($idField);
I want it to pass $idField to a function called "retrieve_by_ke y($idFiled)" . So my problem is how is it going to pass it or rather how is it going to pick it up for that particular project???

[kovik]

What? You have full access to the $idField variable because you had to have the variable in order to pass it as a function parameter.

What is it that you are after?

[rendanime]

What? You have full access to the $idField variable because you had to have the variable in order to pass it as a function parameter.

What is it that you are after?

Hi, look, if i want to retrieve informatiion using userID, i can something like this:
$user_id = $this->session->userdata('user id'); //This will pick-up the userID for that current session autiomatically (i.e without saying $userID=5).
$project_detail s = $this->projectmodel->retrieve_by_pk ey($userID);

So now i have things like this:
$idField =?????; // here is the problem
$project_detail s = $this->projectmodel->retrieve_by_pk ey($idField);
//I want the system to pick up $idField for the project that i have open (current project).