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