session_status

(PHP >=5.4.0)

session_status — Returns the current session status

Description

int session_status ( void )

session_status() is used to return the current session status.

Return Values

PHP_SESSION_DISABLED if sessions are disabled.
PHP_SESSION_NONE if sessions are enabled, but none exists.
PHP_SESSION_ACTIVE if sessions are enabled, and one exists.


simple session_start() request to avoid warning:



<?php

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

// your code

?>

Or similar code works, but give a warning.



<?php

if(session_status() != 2) {session_start();}

// your code

?>

This option work fine without warning.



0 = PHP_SESSION_DISABLED

1 = PHP_SESSION_NONE

2 = PHP_SESSION_ACTIVE

down

php at pointpro dot nl ¶

16 days ago


The advice of ive_insomnia at live dot com should be taken with great care.



First of all, while his use case for session_status is valid, a simpler way to avoid the warning is:



<?php

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

?>



The example of session_status uses the raw values of constants (2 in this case) created specifically for the purpose of not having to use magic numbers.



Better code would be:



<?php

if (session_status() !== PHP_SESSION_ACTIVE) {session_start();}

?>



The same can be done using



<?

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

?>



The use of this function is lies more towards status management: change the behavior of a script when sessions are disabled altogether, for example.

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session_status

Description

Return Values

See Also