ReflectionClass::getProperties()

(PHP 5, PHP 7)

获取一组属性

说明

获取反射过的属性。

参数

可选的过滤器，过滤为所需类型的属性。它使用ReflectionProperty 常量来配置，默认获取所有类型的属性。

返回值

ReflectionProperty对象的数组。

范例

Example #1ReflectionClass::getProperties()过滤例子

这个例子延时了可选$filter参数的用法，例子里实际上忽略了私有属性。

以上例程的输出类似于：

foo
bar
array(2) {
  [0]=>
  object(ReflectionProperty)#3 (2) {
    ["name"]=>
    string(3) "foo"
    ["class"]=>
    string(3) "Foo"
  }
  [1]=>
  object(ReflectionProperty)#4 (2) {
    ["name"]=>
    string(3) "bar"
    ["class"]=>
    string(3) "Foo"
  }
}

参见

• ReflectionClass::getProperty() 获取类的一个属性的 ReflectionProperty
• ReflectionProperty
• ReflectionProperty 修饰符常量

Some may find this useful. 

Note that inherited properties are returned, but no private properties of parent classes. Depending on the use case, you need to check that, too.
do {
  foreach ($reflectionClass->getProperties() as $property) {
    /* ... */
  }
} while ($reflectionClass = $reflectionClass->getParentClass());

The code in the first example actually does get inherited properties with at least php 5.5.9 . I don't know if / when this behavior changed.
Here is the output:
  array(2) {
   [0] =>
   class ReflectionProperty#2 (2) {
    public $name =>
    string(2) "a2"
    public $class =>
    string(2) "AA"
   }
   [1] =>
   class ReflectionProperty#3 (2) {
    public $name =>
    string(2) "a1"
    public $class =>
    string(1) "A"
   }
  }

It should be noted that the 'filter' parameter in the getProperties(filter) method is expected to be of type long. Not sure why, but it doesn't function as a way of passing in a string to fetch a subset of properties by string match.

With PHP 5.3 protected or private properties are easy to access with setAccessible(). However, it's sometimes needed (e.g. Unit Tests) and here is a workaround for getValue():

Note that it wont work if you access the property directly with getProperty().

Looks like you can access public, protected, private variables by casting the object to an array (useful for Unit Testing). However casting to an array still won't allow you access to protected and private static variables.
In PHP 5.3.0+ use ReflectionProperty::setAccessable(true);

PHP Version: 5.2.12
Array
(
  [foo] => public
  [*bar] => protected
  [Foobaz] => private
)
Accessing Public Static: public static
Accessing Constant: const
PHP Version: 5.1.6
Array
(
  [foo] => public
  [*bar] => protected
  [Foobaz] => private
)
Accessing Public Static: public static
Accessing Constant: const

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