(PECL runkit7 >= Unknown)
runkit7_constant_add — Similar to define(), but allows defining in class definitions as well
runkit7_constant_add ( string $constname , mixed $value [, int $newVisibility ] ) : bool
constname
Name of constant to declare. Either a string to indicate a global constant, or classname::constname
to indicate a class constant.
value
NULL, Bool, Long, Double, String, Array, or Resource value to store in the new constant.
newVisibility
Visibility of the constant, for class constants. Public by default. One of the RUNKIT7_ACC_*
constants.
Returns true
on success or false
on failure.
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https://www.php.net/manual/en/function.runkit7-constant-add.php