ReflectionProperty
PHP Manual

ReflectionProperty::setValue

(PHP 5, PHP 7)

ReflectionProperty::setValue — Set property value

说明

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

Sets (changes) the property's value.

参数

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

没有返回值。

错误／异常

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

范例

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

以上例程会输出：

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

参见

ReflectionProperty
PHP Manual