Unbeatable Tic-Tac-Toe

New Game
Make Your Move
O X Select
X O O
X O X

Warning: DOMDocument::load(): Document is empty in /usr/local/www/apache24/data/tictactoe/games.xml, line: 1 in /usr/local/www/apache24/data/tictactoe/index.php on line 36

Fatal error: Uncaught Error: Call to a member function getElementsByTagName() on null in /usr/local/www/apache24/data/tictactoe/index.php:38 Stack trace: #0 /usr/local/www/apache24/data/tictactoe/index.php(113): update_element('t9093', 'moves', 'OX_XOOXOX') #1 /usr/local/www/apache24/data/tictactoe/index.php(334): generate('OX_XOOXOX', 't9093') #2 {main} thrown in /usr/local/www/apache24/data/tictactoe/index.php on line 38