Add function_exists to session_start.

resources/php.php

@@ -27,7 +27,11 @@
 	//session handling
 		//start the session
 			ini_set("session.cookie_httponly", True);
-			if (!isset($_SESSION)) { session_start(); }
+			if (function_exists('session_start')) { 
+				if (!isset($_SESSION)) {
+					session_start();
+				}
+			}
 		//regenerate sessions to avoid session id attacks such as session fixation
 			if (array_key_exists('security',$_SESSION) and $_SESSION['security']['session_rotate']['boolean'] == "true") {
 				$_SESSION['session']['last_activity'] = time();