Check if there is any issue with server session settings for early expiration

a2test.php

<?php
ob_start();
echo 'Session Cookie: ';
if( isset($_COOKIE[session_name()]) )
{
	echo 'Present; Content: ' . $_COOKIE[session_name()] . '<br>';
	if( session_id() == '')
	{
		echo 'Session not started; starting session<br>';
		session_start();
		if( strcasecmp(session_id(), $_COOKIE[session_name()]) == 0 ) echo 'Session ID matches cookie value.<br>';
		else echo 'Session ID: ' . session_id() . ' - Doesn\'t match cookie value<br>';
		if( isset($_SESSION['a2test']) )
		{
			$time_diff = intval($_SERVER['REQUEST_TIME']) - intval($_SESSION['a2test']);
			echo 'a2test present in $_SESSION: ' . date('n/j/Y g:i:s a',$_SESSION['a2test']) . '<br>';
			echo 'Time since a2test set: ' . number_format(($time_diff/60.0),2) . ' minutes<br>';
		}
		else
		{
			echo 'New session, setting a2test value in $_SESSION to current time: ' . date('n/jY g:i:s a',$_SERVER['REQUEST_TIME']) . '<br>';
			echo 'Please check again in a few minutes.<br>';
			$_SESSION['a2test'] = $_SERVER['REQUEST_TIME'];
		}
	}
}
else echo 'Not present; may have been deleted or expired.';
ob_end_flush();
?>