Unbeatable Tic-Tac-Toe

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

Warning: DOMDocument::load(): Couldn't find end of Start Tag i line 21253 in /usr/local/www/apache24/data/tictactoe/games.xml, line: 21253 in /usr/local/www/apache24/data/tictactoe/index.php on line 36

Warning: DOMDocument::load(): Premature end of data in tag game line 21251 in /usr/local/www/apache24/data/tictactoe/games.xml, line: 21253 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('t2471', 'moves', 'XXXXO_O_O') #1 /usr/local/www/apache24/data/tictactoe/index.php(334): generate('XXXXO_O_O', 't2471') #2 {main} thrown in /usr/local/www/apache24/data/tictactoe/index.php on line 38