ReflectionMethod::invoke

(PHP 5)

ReflectionMethod::invokeInvoke

Descrizione

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

Invokes a reflected method.

Elenco dei parametri

object

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

parameter

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

Valori restituiti

Returns the method result.

Errori/Eccezioni

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.

Esempi

Example #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');
?>

Il precedente esempio visualizzerĂ :

Hello Mike

Note

Nota:

If the function has arguments that need to be references, then they must be references in the passed argument list.

Vedere anche:

add a note add a note

User Contributed Notes 3 notes

up
0
dimitriy at remerov dot ru
1 year 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
0
templargrey at wp dot pl
2 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));
?>
up
0
rojaro at gmail dot com
3 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 ).
To Top