Session Variables Only Sets Once The Page Has Been Refreshed

My session variable only changes to the correct value once the page has been loaded for the second time. This behaviour exhibited is weird due to the fact that the other session va

Solution 1:

The session values were being printed before the session value was being changed - therefore the new session value was only being shown on the next page load. If anybody else has a similar problem, this is definitely an important thing to check.