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    ReflectionMethod::invoke

    (PHP 5, PHP 7, PHP 8)

    ReflectionMethod::invoke — Invoke

    Beschreibung

    public ReflectionMethod::invoke(?object $object, mixed ...$args): mixed

    Invokes a reflected method.

    Parameter-Liste

    object

    The object to invoke the method on. For static methods, pass null to this parameter.

    args

    Zero or more parameters to be passed to the method. It accepts a variable number of parameters which are passed to the method.

    Rückgabewerte

    Returns the method result.

    Fehler/Exceptions

    A ReflectionException if the object parameter does not contain an instance of the class that this method was declared in.

    A ReflectionException if the method invocation failed.

    Beispiele

    Beispiel #1 ReflectionMethod::invoke() example

    <?php
    class HelloWorld {

    public function     sayHelloTo($name) {
    return     'Hello ' . $name;
    }

    }

    $reflectionMethod = new ReflectionMethod('HelloWorld', 'sayHelloTo');
    echo     $reflectionMethod->invoke(new HelloWorld(), 'Mike');
    ?>

    Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

    Hello Mike

    Anmerkungen

    Hinweis:

    ReflectionMethod::invoke() cannot be used when reference parameters are expected. ReflectionMethod::invokeArgs() has to be used instead (passing references in the argument list).

    Siehe auch

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    User Contributed Notes 3 notes

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    10
    rojaro at gmail dot com
    13 years ago
    Note: If you want to invoke protected or private methods, you'll first have to make them accessible using the setAccessible() method (see http://php.net/reflectionmethod.setaccessible ).
    up
    5
    dimitriy at remerov dot ru
    12 years ago
    This method can be used to call a overwritten public method of a parent class on an child instance
    The following code will output "A":

    <?php

    class A
    {
        public function     foo()
        {
            return     __CLASS__;
        }
    }

    class     B extends A
    {
        public function     foo()
        {
            return     __CLASS__;
        }
    }

    $b = new B();

    $reflection = new ReflectionObject($b);

    $parentReflection = $reflection->getParentClass();

    $parentFooReflection = $parentReflection->getMethod('foo');

    $data = $parentFooReflection->invoke($b);

    echo     $data;

    ?>
    up
    2
    templargrey at wp dot pl
    13 years ago
    Seems that Reflection doesn`t resolve late static bindings - var_dump will show "string 'a' (length=1)".

    <?php
    class ParentClass { protected static $a = 'a'; static public function init() { return static::$a; } }
    class     ChildClass extends ParentClass { protected static $a = 'b'; }
       
    $r = new ReflectionClass('ChildClass');
    var_dump($r->getMethod('init')->invoke(null));
    ?>
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