ReflectionProperty::setValue

(PHP 5, PHP 7, PHP 8)

ReflectionProperty::setValue — Set property value

Description

public ReflectionProperty::setValue(object $object, mixed $value): void
public ReflectionProperty::setValue(mixed $value): void

Sets (changes) the property's value.

Parameters

object

If the property is non-static an object must be provided to change the property on. If the property is static this parameter is left out and only value needs to be provided.

value

The new value.

Return Values

No value is returned.

Changelog

Version Description
8.1.0 Private and protected properties can be accessed by ReflectionProperty::setValue() right away. Previously, they needed to be made accessible by calling ReflectionProperty::setAccessible(); otherwise a ReflectionException was thrown.

Examples

Example #1 ReflectionProperty::setValue() example

<?php
class Foo {
public static $staticProperty;

public $property;
protected $privateProperty;
}

$reflectionClass = new ReflectionClass('Foo');

$reflectionClass->getProperty('staticProperty')->setValue('foo');
var_dump(Foo::$staticProperty);

$foo = new Foo;

$reflectionClass->getProperty('property')->setValue($foo, 'bar');
var_dump($foo->property);

$reflectionProperty = $reflectionClass->getProperty('privateProperty');
$reflectionProperty->setAccessible(true); // only required prior to PHP 8.1.0
$reflectionProperty->setValue($foo, 'foobar');
var_dump($reflectionProperty->getValue($foo));
?>

The above example will output:

string(3) "foo"
string(3) "bar"
string(6) "foobar"

See Also