Unbeatable Tic-Tac-Toe

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

Warning: DOMDocument::load(): Couldn't find end of Start Tag ip line 36745 in /usr/local/www/apache24/data/tictactoe/games.xml, line: 36745 in /usr/local/www/apache24/data/tictactoe/index.php on line 36

Warning: DOMDocument::load(): Premature end of data in tag game line 36743 in /usr/local/www/apache24/data/tictactoe/games.xml, line: 36745 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('t8351', 'moves', '_XO_OXX_O') #1 /usr/local/www/apache24/data/tictactoe/index.php(334): generate('_XO_OXX_O', 't8351') #2 {main} thrown in /usr/local/www/apache24/data/tictactoe/index.php on line 38