uopz_undefine
(PECL uopz 1, PECL uopz 2, PECL uopz 5, PECL uopz 6, PECL uopz 7)
uopz_undefine — Undefine a constant
Description
Removes the constant at runtime
Parameters
-
class -
The name of the class containing
constant -
constant -
The name of an existing constant
Return Values
Returns true on success or false on failure.
Examples
Example #1 uopz_undefine() example
<?php
define("MY", true);
uopz_undefine("MY");
var_dump(defined("MY"));
?>The above example will output:
bool(false)
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