ReflectionProperty::getValue PHP官方教程

Description

public mixed ReflectionProperty::getValue ([ object $object ] )

Gets the property's value.

Parameters

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.

Return Values

The current value of the property.

Errors/Exceptions

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

Examples

Example #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));
?>

The above example will output:

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

ReflectionProperty::getValue