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    ReflectionClass::getStaticPropertyValue

    (PHP 5 >= 5.1.2, PHP 7, PHP 8)

    ReflectionClass::getStaticPropertyValue — Gets static property value

    Descrizione

    public ReflectionClass::getStaticPropertyValue(string $name, mixed &$def_value = ?): mixed

    Gets the value of a static property on this class.

    Elenco dei parametri

    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.

    Valori restituiti

    The value of the static property.

    Esempi

    Example #1 Basic usage of ReflectionClass::getStaticPropertyValue()

    <?php
    class Apple {
    public static     $color = 'Red';
    }

    $class = new ReflectionClass('Apple');
    var_dump($class->getStaticPropertyValue('color'));
    ?>

    Il precedente esempio visualizzerà:

    string(3) "Red"

    Vedere anche:

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    User Contributed Notes 2 notes

    up
    7
    Antares
    13 years ago
    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';
    up
    -2
    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
    ?>
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