ReflectionProperty::isInitialized

    (PHP 7 >= 7.4.0, PHP 8)

    ReflectionProperty::isInitialized — Checks whether a property is initialized

    Beschreibung

    publicReflectionProperty::isInitialized(?object$object = null): bool

    Checks whether a property is initialized.

    Parameter-Liste

    object

    If the property is non-static an object must be provided to fetch the property from.

    Rückgabewerte

    Returns false for typed properties prior to initialization, and for properties that have been explicitly unset(). For all other properties true will be returned.

    Fehler/Exceptions

    Throws a ReflectionException if the property is inaccessible. You can make a protected or private property accessible using ReflectionProperty::setAccessible().

    Changelog

    VersionBeschreibung
    8.0.0object is nullable now.

    Beispiele

    Beispiel #1 ReflectionProperty::isInitialized() example

    <?php
    class User
    {
    public     string $name;
    }

    $rp = new ReflectionProperty('User', 'name');
    $user = new User;
    var_dump($rp->isInitialized($user));
    $user->name = 'Nikita';
    var_dump($rp->isInitialized($user));
    ?>

    Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

    bool(false) bool(true)

    Siehe auch

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