ReflectionProperty::getValue

(PHP 5, PHP 7, PHP 8)

ReflectionProperty::getValue — Gets value

说明

public ReflectionProperty::getValue ( object|null $object = null ) : mixed

Gets the property's value.

参数

object

If the property is non-static an object must be provided to fetch the property from. If you want to fetch the default property without providing an object use ReflectionClass::getDefaultProperties() instead.

返回值

The current value of the property.

错误／异常

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

更新日志

版本 说明
8.0.0 object is nullable now.

范例

示例 #1 ReflectionProperty::getValue() example

<?php
class Foo {
    public static $staticProperty = 'foobar';
    
    public $property = 'barfoo';
    protected $privateProperty = 'foofoo';
}

$reflectionClass = new ReflectionClass('Foo');

var_dump($reflectionClass->getProperty('staticProperty')->getValue());
var_dump($reflectionClass->getProperty('property')->getValue(new Foo));

$reflectionProperty = $reflectionClass->getProperty('privateProperty');
$reflectionProperty->setAccessible(true);
var_dump($reflectionProperty->getValue(new Foo));
?>

以上例程会输出：

string(6) "foobar"
string(6) "barfoo"
string(6) "foofoo"

参见