Gets class constants
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    ReflectionClass::getReflectionConstants

    (PHP 7 >= 7.1.0, PHP 8)

    ReflectionClass::getReflectionConstants — Gets class constants

    Description

    public ReflectionClass::getReflectionConstants(?int $filter = null): array

    Retrieves reflected constants.

    Parameters

    filter

    The optional filter, for filtering desired constant visibilities. It's configured using the ReflectionClassConstant constants, and defaults to all constant visibilities.

    Return Values

    An array of ReflectionClassConstant objects.

    Changelog

    Version Description
    8.0.0 filter has been added.

    Examples

    Example #1 Basic ReflectionClass::getReflectionConstants() example

    <?phpclass Foo {    public    const FOO  = 1;    protected const BAR  = 2;    private   const BAZ  = 3;}$foo = new Foo();$reflect = new ReflectionClass($foo);$consts  = $reflect->getReflectionConstants();foreach ($consts as $const) {    print $const->getName() . "\n";}var_dump($consts);?>

    The above example will output something similar to:

    FOO
BAR
BAZ
array(3) {
  [0]=>
  object(ReflectionClassConstant)#3 (2) {
    ["name"]=>
    string(3) "FOO"
    ["class"]=>
    string(3) "Foo"
  }
  [1]=>
  object(ReflectionClassConstant)#4 (2) {
    ["name"]=>
    string(3) "BAR"
    ["class"]=>
    string(3) "Foo"
  }
  [2]=>
  object(ReflectionClassConstant)#5 (2) {
    ["name"]=>
    string(3) "BAZ"
    ["class"]=>
    string(3) "Foo"
  }
}

    See Also