Unbeatable Tic-Tac-Toe

New Game
Player 1 Wins
X X X
O O
X O

Warning: DOMDocument::load(): expected '>' in /usr/local/www/apache24/data/tictactoe/games.xml, line: 13660 in /usr/local/www/apache24/data/tictactoe/index.php on line 36

Warning: DOMDocument::load(): Premature end of data in tag game line 13659 in /usr/local/www/apache24/data/tictactoe/games.xml, line: 13660 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('t9595', 'moves', 'XXXOO_XO_') #1 /usr/local/www/apache24/data/tictactoe/index.php(334): generate('XXXOO_XO_', 't9595') #2 {main} thrown in /usr/local/www/apache24/data/tictactoe/index.php on line 38