<?php
	global $session;
	if ((isset($session)) && (is_array($session))) {
		//session is ok
	} else {
		$createsession = false;
		if (isset($_COOKIE['session_hash'])) {
			$sql = "SELECT * FROM sessions
					WHERE session_hash = '" . $_COOKIE['session_hash'] . "'";
			$result = $db->sql_query($sql);
			if (!$result) {
				trigger_error('CANNOT ACCESS SESSIONS TABLE');
			}
			$row = $db->sql_fetchrow($result);
			if (!$row) {
				$createsession = true;
			} else {
				$session = unserialize(base64_decode($row['session_array']));
			}
		} else {
			$createsession = true;
		}
		if ($createsession) {
			$session = array();
			$session['_timestamp_created'] = time();
			$session['_hash'] = md5('now is ' . microtime());
			setcookie('session_hash', $session['_hash'], time() + 60 * 60 * param('session deletion hours'));
		}
	}
?>