PHP 5.4 adds the function of judging session status

In previous php versions, to determine whether the session is valid, you can only use the following method:

Java code

session_start();

if(isset($_SESSION))

{

echo "Started";

}

else

{

echo "Not Started";

}

In php 5.4 (forthcoming), the status of the session is To subdivide, you can use the following Method judgment:


Java code

session_start();

$status = session_status();

if($status == PHP_SESSION_DISABLED)

{

echo "Session is Disabled";

}

else if($status == PHP_SESSION_NONE)

{

echo "Session Enabled but No Session values ​​Created";

}

else

{

echo "Session Enabled and Session values ​​Created" ;

}

You can see that by using session_status(), an int type value is returned, indicating various statuses of the session, such as prohibited (PHP_SESSION_DISABLED), session does not exist yet

(PHP_SESSION_NONE)

, Or the session has been established (PHP_SESSION_ACTIVE)