I need to know session_start has used before?

Question

I have very big stack of code.
I need to use session_start() function always.
If I hasn't used session_start() not run each other.

example:

<?php 
if(session_start() == "used")
{
       // not run
}
else
{
       session_start();
}
?>

include it in your config file – swapnesh Jun 06 '12 at 11:54 — swapnesh, Jun 06 '12 at 11:54

score 4 · Accepted Answer · edited May 23 '17 at 10:34

4

do you mean, u want to check if the session has already been started? you can get it from here

if(session_id() == '') {
    // session isn't started
}

edited May 23 '17 at 10:34

Community

answered Jun 06 '12 at 11:55

Nandini Bhaduri

This not for only session_start(). I think php programmers need check functions has used or not. – Birlikisgu Jun 06 '12 at 11:58
1

then you might save something in the session itself - like $session->used = true and check that before calling the functions.... – Nandini Bhaduri Jun 06 '12 at 12:02
@Birlikisgu I cannot imagine any reason why you would want to remember whether a function has been called. When you do need that, you're doing something wrong. Please provide an example (in your question) so you can get decent advise. Putting a `if (functionUsed) return;` on top of every function is not an option. – CodeCaster Jun 06 '12 at 13:20

score 2 · Answer 2 · answered Jun 06 '12 at 11:57

2

if(session_id() === ""){
   session_start();
}

answered Jun 06 '12 at 11:57

Riz

How can i use this for other functions? – Birlikisgu Jun 06 '12 at 12:00
Just copy it and paste where you want to start session. It will check if session is not already started. – Riz Jun 06 '12 at 12:02
If you want to add more code, add that under `session_start();` – Riz Jun 06 '12 at 12:05

score 1 · Answer 3 · answered Jun 06 '12 at 11:55

1

I think it will be better to use this top of the page.There is no need to use this sevral time.

session_start();

answered Jun 06 '12 at 11:55

I have 23 classes. I'm using session_start() in my classes. – Birlikisgu Jun 06 '12 at 11:56
2

@Birlikisgu then change your architecture. A class should not rely on sessions, and besides that, you _must_ have a point-of-entry for your application (i.e. an `index.php` or `config.php`). Put the `session_start()` there. – CodeCaster Jun 06 '12 at 11:57

score 1 · Answer 4 · answered Jun 06 '12 at 12:10

1

you can do something like: if(!isset($_SESSION)){ session_start(); }

answered Jun 06 '12 at 12:10

Smita

score 1 · Answer 5 · edited Jun 07 '12 at 12:34

1

you can try it this way:

if (!isset($_SESSION)) {    
    session_start();
}

6 Answers6