(PECL runkit >= 0.7.0)
runkit_constant_redefine — Redefine an already defined constant
bool runkit_constant_redefine ( string $constname , mixed $newvalue )
constname
Constant to redefine. Either string indicating global constant, or classname::constname indicating class constant.
newvalue
New value to assign to constant.
Returns TRUE
on success or FALSE
on failure.
© 1997–2018 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/function.runkit-constant-redefine.php