runkit_constant_remove
(PECL runkit >= 0.7.0)
runkit_constant_remove — Remove/Delete an already defined constant
说明
runkit_constant_remove
( string
$constname
) : bool参数
-
constname -
Name of constant to remove. Either a string indicating a global constant, or classname::constname indicating a class constant.
返回值
成功时返回 TRUE， 或者在失败时返回 FALSE。
参见
- define() - 定义一个常量
- runkit_constant_add() - Similar to define(), but allows defining in class definitions as well
- runkit_constant_redefine() - Redefine an already defined constant