note 26147 added to function.constant

If the string <name> is not (yet) registered as a constant, it will return false and generate a Warning (Couldn't find constant <name> in <file> on line <line nr>). This can be used in a construction to avoid a file from being executed twice: if ( ! @constant ( "<file_id>" ) ) { define ( "<file_id>", true ); <statements> <functions> <other code> } -- http://www.php.net/manual/en/function.constant.php http://master.php.net/manage/user-notes.php?action=edit+26147 http://master.php.net/manage/user-notes.php?action=delete+26147 http://master.php.net/manage/user-notes.php?action=reject+26147