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    ReflectionClass::getReflectionConstants

    (PHP 7 >= 7.1.0, PHP 8)

    ReflectionClass::getReflectionConstants — Gets class constants

    说明

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

    Retrieves reflected constants.

    参数

    filter

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

    返回值

    An array of ReflectionClassConstant objects.

    更新日志

    版本 说明
    8.0.0 filter has been added.

    示例

    示例 #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);

    ?>

    以上示例的输出类似于：

    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"
  }
}

    参见

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