check if session exists

[torva]

How can you check if a session exists?

The pseudo code for this would be like this:

if( session exists )
{
session_start();
.....
......
}
else
{
print message "Session expired or wrong session id";

showScreen("Login");
}

T.

[devinemke]

use [man]session_id[/man]. it will return an empty string (which evaluates to boolean FALSE) if there is no session ID.