ReflectionClass::getMethods

    (PHP 5, PHP 7, PHP 8)

    ReflectionClass::getMethods — 获取方法的数组

    说明

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

    获取类的方法的数组。

    参数

    filter

    过滤结果为仅包含某些属性的方法。默认不过滤。

    ReflectionMethod::IS_STATIC、 ReflectionMethod::IS_PUBLIC、 ReflectionMethod::IS_PROTECTED、 ReflectionMethod::IS_PRIVATE、 ReflectionMethod::IS_ABSTRACT、 ReflectionMethod::IS_FINAL 的按位或（OR），就会返回任意满足条件的属性。

    注意: 请注意：其他位操作，例如 ~ 无法按预期运行。这个示例也就是说，无法获取所有的非静态方法。

    返回值

    包含每个方法 ReflectionMethod 对象的数组。

    更新日志

    版本 说明
    7.2.0 filter 现在允许为 null。

    示例

    示例 #1 ReflectionClass::getMethods() 的基本用法

    <?php
    class Apple {
    public function     firstMethod() { }
    final protected function     secondMethod() { }
    private static function     thirdMethod() { }
    }

    $class = new ReflectionClass('Apple');
    $methods = $class->getMethods();
    var_dump($methods);
    ?>

    以上示例会输出：

    array(3) {
  [0]=>
  object(ReflectionMethod)#2 (2) {
    ["name"]=>
    string(11) "firstMethod"
    ["class"]=>
    string(5) "Apple"
  }
  [1]=>
  object(ReflectionMethod)#3 (2) {
    ["name"]=>
    string(12) "secondMethod"
    ["class"]=>
    string(5) "Apple"
  }
  [2]=>
  object(ReflectionMethod)#4 (2) {
    ["name"]=>
    string(11) "thirdMethod"
    ["class"]=>
    string(5) "Apple"
  }
}

    示例 #2 从 ReflectionClass::getMethods() 中过滤结果

    <?php
    class Apple {
    public function     firstMethod() { }
    final protected function     secondMethod() { }
    private static function     thirdMethod() { }
    }

    $class = new ReflectionClass('Apple');
    $methods = $class->getMethods(ReflectionMethod::IS_STATIC | ReflectionMethod::IS_FINAL);
    var_dump($methods);
    ?>

    以上示例会输出：

    array(2) {
  [0]=>
  object(ReflectionMethod)#2 (2) {
    ["name"]=>
    string(12) "secondMethod"
    ["class"]=>
    string(5) "Apple"
  }
  [1]=>
  object(ReflectionMethod)#3 (2) {
    ["name"]=>
    string(11) "thirdMethod"
    ["class"]=>
    string(5) "Apple"
  }
}

    参见

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    用户贡献的备注 3 notes

    up
    5
    x_atrix at yahoo dot com
    11 years ago
    Note, for ReflectionClass::getMethods() not all methods in a final class are final, just the ones that have explicit modifier.
    If you want to use an and operator for the filter, here is a simple implementation
    <?php
    final class Apple {
    public function     publicMethod() { }
    public final function     publicFinalMethod() { }
    protected final function     protectedFinalMethod() { }
    private static function     privateStaticMethod() { }
    }

    class     MyReflection extends ReflectionClass {
    public function     __construct($argument) {
    parent::__construct($argument);
    }

    /**
    * (non-PHPdoc)
    * @see ReflectionClass::getMethods()
    */
    public function getMethods($filter = null, $useAndOperator = true) {
    if (    $useAndOperator !== true) {
    return     parent::getMethods($filter);
    }

    $methods = parent::getMethods($filter);
    $results = array();

    foreach (    $methods as $method) {
    if ((    $method->getModifiers() & $filter) === $filter) {
    $results[] = $method;
    }
    }

    return     $results;
    }
    }

    $class = new MyReflection('Apple');
    $methods = $class->getMethods(ReflectionMethod::IS_FINAL | ReflectionMethod::IS_PUBLIC);
    var_dump($methods);

    $methods = $class->getMethods(ReflectionMethod::IS_FINAL | ReflectionMethod::IS_PUBLIC, false);
    var_dump($methods);
    ?>

    Result:
    array(1) {
    [0]=>
    object(ReflectionMethod)#4 (2) {
    ["name"]=>
    string(17) "publicFinalMethod"
    ["class"]=>
    string(5) "Apple"
    }
    }

    array(3) {
    [0]=>
    &object(ReflectionMethod)#5 (2) {
    ["name"]=>
    string(12) "publicMethod"
    ["class"]=>
    string(5) "Apple"
    }
    [1]=>
    &object(ReflectionMethod)#3 (2) {
    ["name"]=>
    string(17) "publicFinalMethod"
    ["class"]=>
    string(5) "Apple"
    }
    [2]=>
    &object(ReflectionMethod)#6 (2) {
    ["name"]=>
    string(20) "protectedFinalMethod"
    ["class"]=>
    string(5) "Apple"
    }
    }
    up
    5
    tom at r dot je
    10 years ago
    ReflectionClass::getMethods() sorts the methods by class (lowest in the inheritance tree first) then by the order they are defined in the class definition:

    <?php
    class A {
    public function     method1() {

    }

    public function     method2() {

    }
    }

    class     B extends A {

    public function     method3() {

    }

    public function     method4() {

    }
    }

    $class = new ReflectionClass('B');
    print_r($class->getMethods());
    ?>

    This will output:

    Array
    (
    [0] => ReflectionMethod Object
    (
    [name] => method3
    [class] => B
    )

    [1] => ReflectionMethod Object
    (
    [name] => method4
    [class] => B
    )

    [2] => ReflectionMethod Object
    (
    [name] => method1
    [class] => A
    )

    [3] => ReflectionMethod Object
    (
    [name] => method2
    [class] => A
    )

    )
    up
    1
    deminy at deminy dot net
    13 years ago
    Method ReflectionClass::getMethods doesn't work constantly across different versions of PHP. For following code piece

    <?php
    class Dummy implements Iterator
    {
    public function     current () {}
    public function     next () {}
    public function     key () {}
    public function     valid () {}
    public function     rewind () {}
    }

    $reflection = new ReflectionClass('Dummy');
    $aMethods = $reflection->getMethods();
    echo     '# of methods: ', count($aMethods), "\n";
    ?>

    , it outputs "# of methods: 10" on PHP 5.2.14 and PHP 5.2.17, including all methods defined in the class itself and in the interface no matter if a method has been implemented or overridden; however, it returns "# of methods: 5" on PHP 5.3.5. Based on some other tests did by my colleagues, I assume it also returns "# of methods: 5" on PHP 5.2.10 and PHP 5.3.6.
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