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<ReflectionClass::getReflectionConstantReflectionClass::getShortName>
^ReflectionClassLast updated: Mon, 26 Oct 2026

ReflectionClass::getReflectionConstants

(PHP 7 >= 7.1.0, PHP 8)

ReflectionClass::getReflectionConstants — Gets class constants

Description

public function 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

<?php
class 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


<ReflectionClass::getReflectionConstantReflectionClass::getShortName>
^ReflectionClassLast updated: Mon, 26 Oct 2026