Php/docs/function.runkit7-constant-redefine

• PHP Manual
• runkit7 函数
• Redefine an already defined constant

runkit7_constant_redefine

(PECL runkit7 >= Unknown)

runkit7_constant_redefine — Redefine an already defined constant

说明

runkit7_constant_redefine ( string $constname , mixed $value [, string $newVisibility ] ) : bool

参数

constname

Constant to redefine. Either the name of a global constant, or classname::constname indicating class constant.

value

Value to assign to the constant.

newVisibility

The new visibility of the constant, for class constants. Unchanged by default. One of the RUNKIT7_ACC_* constants.

返回值

成功时返回 true， 或者在失败时返回 false。

参见

• runkit7_constant_add() - Similar to define(), but allows defining in class definitions as well
• runkit7_constant_remove() - Remove/Delete an already defined constant