ReflectionMethod::invoke

(PHP 5)

ReflectionMethod::invokeInvoke

Descrição

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

Invokes a reflected method.

Parâmetros

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.

Valor Retornado

Returns the method result.

Erros

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.

Exemplos

Exemplo #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');
?>

O exemplo acima irá imprimir:

Hello Mike

Notas

Nota:

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

Veja Também

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User Contributed Notes 3 notes

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0
dimitriy at remerov dot ru
2 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
0
templargrey at wp dot pl
3 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 ).
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