note 18286 added to function.include-once

If you call twice include_once() using the same include file, the second include_once() will return false. So, you have to use get_included_files() to check if the file was already included or if the file does not exist. $res = include_once('path/file.inc'); if(!res) { if( !in_array('path/file.inc', get_included_files()) ) { echo "The file 'path/file.inc' does not exists"; exit(1); } } -- http://www.php.net/manual/en/function.include-once.php http://master.php.net/manage/user-notes.php?action=edit+18286 http://master.php.net/manage/user-notes.php?action=delete+18286 http://master.php.net/manage/user-notes.php?action=reject+18286