ReflectionClass::getProperties
(PHP 5, PHP 7, PHP 8)
ReflectionClass::getProperties — プロパティを取得する
戻り値
ReflectionProperty オブジェクトの配列を返します。
変更履歴
| バージョン | 説明 |
|---|---|
| 7.2.0 |
filter は、nullable になりました。
|
例
例1 ReflectionClass::getProperties() でのフィルタリングの例
この例では、オプションのパラメータ filter
を使って private プロパティを読み飛ばします。
<?php
class Foo {
public $foo = 1;
protected $bar = 2;
private $baz = 3;
}
$foo = new Foo();
$reflect = new ReflectionClass($foo);
$props = $reflect->getProperties(ReflectionProperty::IS_PUBLIC | ReflectionProperty::IS_PROTECTED);
foreach ($props as $prop) {
print $prop->getName() . "\n";
}
var_dump($props);
?>上の例の出力は、 たとえば以下のようになります。
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"
}
}
参考
- ReflectionClass::getProperty() - クラスのプロパティを表す ReflectionProperty を取得する
- ReflectionProperty
- ReflectionProperty の修飾子定数
＋add a note
User Contributed Notes 6 notes
kelunik at php dot net ¶
6 years ago
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());
postmaster at greg0ire dot fr ¶
10 years ago
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"
}
}
muratyaman at gmail dot com ¶
15 years ago
Some may find this useful.
<?php
/**
* Recursive function to get an associative array of class properties by property name => ReflectionProperty() object
* including inherited ones from extended classes
* @param string $className Class name
* @param string $types Any combination of <b>public, private, protected, static</b>
* @return array
*/
function getClassProperties($className, $types='public'){
$ref = new ReflectionClass($className);
$props = $ref->getProperties();
$props_arr = array();
foreach($props as $prop){
$f = $prop->getName();
if($prop->isPublic() and (stripos($types, 'public') === FALSE)) continue;
if($prop->isPrivate() and (stripos($types, 'private') === FALSE)) continue;
if($prop->isProtected() and (stripos($types, 'protected') === FALSE)) continue;
if($prop->isStatic() and (stripos($types, 'static') === FALSE)) continue;
$props_arr[$f] = $prop;
}
if($parentClass = $ref->getParentClass()){
$parent_props_arr = getClassProperties($parentClass->getName());//RECURSION
if(count($parent_props_arr) > 0)
$props_arr = array_merge($parent_props_arr, $props_arr);
}
return $props_arr;
}
//USAGE
class A{
public $a1;
function abc(){
//do something
}
}
class AA extends A{
public $a2;
function edf(){
//do something
}
}
class AAA extends AA{
//may not have extra properties, but may have extra methods
function ghi(){
//ok
}
}
//$ref = new ReflectionClass('AAA'); $props = $ref->getProperties();//This will get no properties!
$props_arr = getClassProperties('AAA', 'public');//Use this
var_dump($props_arr);
/*
OUTPUT on PHP5.2.6:
array
'a1' =>
object(ReflectionProperty)[4]
public 'name' => string 'a1' (length=2)
public 'class' => string 'AAA' (length=3)
'a2' =>
object(ReflectionProperty)[3]
public 'name' => string 'a2' (length=2)
public 'class' => string 'AAA' (length=3)
*/
?>
mcurtis ¶
15 years ago
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.
Yzmir Ramirez ¶
14 years ago
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
echo "PHP Version: ".phpversion()."\n";
class Foo {
public $foo = 'public';
protected $bar = 'protected';
private $baz = 'private';
public static $sfoo = 'public static';
protected static $sbar = 'protected static';
private static $sbaz = 'private static';
const COO = 'const';
}
$obj = new Foo;
$arr = (array)$obj;
print_r($arr);
echo "Accessing Public Static: ".Foo::$sfoo."\n";
// echo Foo::$sbar."\n"; // Fatal error: Cannot access protected property Foo::$sbar
// echo Foo::$sbaz."\n"; // Fatal error: Cannot access private property Foo::$sbaz
echo "Accessing Constant: ".Foo::COO."\n";
?>
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
david dot thalmann at gmail dot com ¶
15 years ago
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():
<?php
$class = new ReflectionClass('SomeClass');
$props = $class->getProperties();
// $propsStatic = $class->getStaticProperties();
$myPrivatePropertyValue = $props['aPrivateProperty'];
?>
Note that it wont work if you access the property directly with getProperty().