It seems this method has a security level different from the getStaticProperties method.
If you make two classes A and B looking like
<?php
class A{
protected static $static_var='foo';
public function getStatic(){
$class=new ReflectionClass($this);
return $class->getStaticPropertyValue('static_var');
}
public function getStatic2(){
$class=new ReflectionClass($this);
$staticProps=$class->getStaticProperties();
return $staticProps['static_var'];
}
public function __construct(){
echo $this->getStatic2();
echo $this->getStatic();
}
}
class B extends A{
protected static $static_var='foo2';
}
?>
Then the output will be an exception for the getStatic() call, when the getStatic2() will correctly return 'foo2';
ReflectionClass::getStaticPropertyValue
(PHP 5 >= 5.1.0, PHP 7)
ReflectionClass::getStaticPropertyValue — Gets static property value
설명
Gets the value of a static property on this class.
인수
-
name -
The name of the static property for which to return a value.
-
def_value -
A default value to return in case the class does not declare a static property with the given
name. If the property does not exist and this argument is omitted, a ReflectionException is thrown.
반환값
The value of the static property.
예제
Example #1 Basic usage of ReflectionClass::getStaticPropertyValue()
<?php
class Apple {
public static $color = 'Red';
}
$class = new ReflectionClass('Apple');
var_dump($class->getStaticPropertyValue('color'));
?>
위 예제의 출력:
string(3) "Red"
참고
- ReflectionClass::getStaticProperties() - Gets static properties
- ReflectionClass::setStaticPropertyValue() - Sets static property value
add a note
User Contributed Notes 2 notes
Antares ¶
13 years ago
Mauro Gabriel Titimoli ¶
14 years ago
If you want to change a static property of a variable class...
PHP 5.2
<?php
$reflection = new ReflectionClass($className);
$staticPropertyReference = & $reflection->getStaticPropertyValue($staticPropertyName);
$staticPropertyReference = 'new value';
?>
PHP 5.3
<?php
$className::$$classProperty
?>
