# runkit_constant_redefine

(PECL runkit:0.7-0.9)

runkit_constant_redefine — Redefine an already defined constant

### Description

bool runkit_constant_redefine ( string `$constname` , mixed `$newvalue` )

### Parameters

`constname`

  Constant to redefine. Either string indicating global constant, or classname::constname indicating class constant.

`newvalue`

  New value to assign to constant.

### Return Values

Returns `TRUE` on success or `FALSE` on failure.

### See Also

- runkit_constant_add()
- runkit_constant_remove()