runkit_constant_redefine
(PECL runkit:0.7-0.9)
runkit_constant_redefine — Redefine an already defined constant
說明
bool runkit_constant_redefine
( string $constname
, mixed $newvalue
)
參數
- constname
-
Constant to redefine. Either string indicating global constant, or classname::constname indicating class constant.
- newvalue
-
New value to assign to constant.
Return值
如果成功則回傳 TRUE，失敗則回傳 FALSE。