(PECL uopz 1, PECL uopz 2, PECL uopz 5, PECL uopz 6, PECL uopz 7)
uopz_undefine — Undefine a constant
Removes the constant at runtime
class
The name of the class containing
constant
constant
The name of an existing constant
Example #1 uopz_undefine() example
<?php
define
(
"MY"
,
true
);
uopz_undefine
(
"MY"
);
var_dump
(
defined
(
"MY"
));
?>
The above example will output:
bool(false)