Unbeatable Tic-Tac-Toe

O
O	X	X
O		X

Warning: DOMDocument::load(): Couldn't find end of Start Tag move line 16900 in /usr/local/www/apache24/data/tictactoe/games.xml, line: 16900 in /usr/local/www/apache24/data/tictactoe/index.php on line 36

Warning: DOMDocument::load(): Premature end of data in tag game line 16899 in /usr/local/www/apache24/data/tictactoe/games.xml, line: 16900 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('t2499', 'moves', 'O__OXXO_X') #1 /usr/local/www/apache24/data/tictactoe/index.php(334): generate('O__OXXO_X', 't2499') #2 {main} thrown in /usr/local/www/apache24/data/tictactoe/index.php on line 38