Warning: file(names.txt) [function.file]: failed to open stream: No such file or directory in /usr/www/users/artlung/lab.artlung.com/php-find-duplicates-in-text-file/index.php on line 3

Warning: Invalid argument supplied for foreach() in /usr/www/users/artlung/lab.artlung.com/php-find-duplicates-in-text-file/index.php on line 7