ReflectionProperty::setValue

(PHP 5, PHP 7, PHP 8)

ReflectionProperty::setValue — Set property value

說明

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

Sets (changes) the property's value.

參數(shù)

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.

返回值

沒有返回值。

錯(cuò)誤／異常

Throws a ReflectionException if the property is inaccessible. You can make a protected or private property accessible using ReflectionProperty::setAccessible().

范例

示例 #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);
$reflectionProperty->setValue($foo, 'foobar');
var_dump($reflectionProperty->getValue($foo));
?>

以上例程會(huì)輸出：

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

參見