Unbeatable Tic-Tac-Toe

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

Warning: DOMDocument::load(): Couldn't find end of Start Tag m line 33364 in /usr/local/www/apache24/data/tictactoe/games.xml, line: 33364 in /usr/local/www/apache24/data/tictactoe/index.php on line 36

Warning: DOMDocument::load(): Premature end of data in tag game line 33363 in /usr/local/www/apache24/data/tictactoe/games.xml, line: 33364 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('t9409', 'moves', '____O_OXX') #1 /usr/local/www/apache24/data/tictactoe/index.php(334): generate('____O_OXX', 't9409') #2 {main} thrown in /usr/local/www/apache24/data/tictactoe/index.php on line 38