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 ).
ReflectionMethod::invoke
(PHP 5, PHP 7)
ReflectionMethod::invoke — Invoke
Descrierea
Invokes a reflected method.
Parametri
-
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.
Valorile întoarse
Returns the method result.
Erori/Excepții
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.
Exemple
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');
?>
Exemplul de mai sus va afișa:
Hello Mike
Note
Notă:
Dacă funcția are argumente ce trebuie să fie referințe, atunci ele trebuie să fie ca referințe și în lista argumentelor transmise.
A se vedea și
- ReflectionMethod::invokeArgs() - Invoke args
- __invoke()
- call_user_func() - Call the callback given by the first parameter
add a note
User Contributed Notes 3 notes
rojaro at gmail dot com ¶
13 years ago
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;
?>
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));
?>
