Unbeatable Tic-Tac-Toe

New Game
Player 2 Wins
X X O
X O
O

Warning: DOMDocument::load(): Failed to parse QName 'xml:' in /usr/local/www/apache24/data/tictactoe/games.xml, line: 27479 in /usr/local/www/apache24/data/tictactoe/index.php on line 36

Warning: DOMDocument::load(): Specification mandates value for attribute xml: in /usr/local/www/apache24/data/tictactoe/games.xml, line: 27479 in /usr/local/www/apache24/data/tictactoe/index.php on line 36

Warning: DOMDocument::load(): attributes construct error in /usr/local/www/apache24/data/tictactoe/games.xml, line: 27479 in /usr/local/www/apache24/data/tictactoe/index.php on line 36

Warning: DOMDocument::load(): Couldn't find end of Start Tag game line 27479 in /usr/local/www/apache24/data/tictactoe/games.xml, line: 27479 in /usr/local/www/apache24/data/tictactoe/index.php on line 36

Warning: DOMDocument::load(): Premature end of data in tag tictactoe line 2 in /usr/local/www/apache24/data/tictactoe/games.xml, line: 27479 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('t5506', 'moves', 'XXOXO_O__') #1 /usr/local/www/apache24/data/tictactoe/index.php(334): generate('XXOXO_O__', 't5506') #2 {main} thrown in /usr/local/www/apache24/data/tictactoe/index.php on line 38