ReflectionMethod::invoke

(PHP 5, PHP 7)

ReflectionMethod::invokeInvoke

Opis

public ReflectionMethod::invoke ( object $object [, mixed $... ] ) : mixed

Invokes a reflected method.

Parametry

object

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

...

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

Zwracane wartości

Returns the method result.

Błędy/Wyjątki

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.

Przykłady

Przykład #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');
?>

Powyższy przykład wyświetli:

Hello Mike

Notatki

Informacja:

Jeśli funkcja posiada argumenty które muszą być referencjami, muszą one być referencjami w przekazywanej liście argumentów.

Zobacz też:

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User Contributed Notes 3 notes

up
10
rojaro at gmail dot com
9 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
8 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
9 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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