ReflectionMethod::invoke

(PHP 5, PHP 7, PHP 8)

ReflectionMethod::invokeInvoke

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

add a note

User Contributed Notes 3 notes

up
21
rojaro at gmail dot com
14 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
8
dimitriy at remerov dot ru
13 years ago
This method can be used to call a overwritten public method of a parent class on an child instanceThe following code will output "A":<?phpclass 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
0
templargrey at wp dot pl
14 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));
?>
To Top