PHP.SU
FORUM.PHP.SU
(no version information, might be only in CVS)
Name of constant to declare. Either a string to indicate a global constant, or classname::constname to indicate a class constant.
NULL, Bool, Long, Double, String, or Resource value to store in the new constant.
Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.