<?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');
$reflectionProperty->setAccessible(true); // PHP 8.1.0 より前のバージョンのみ、この行の実行が必須でした
var_dump($reflectionProperty->getValue(new Foo));
?>
string(6) "foobar"
string(6) "barfoo"
string(6) "foofoo"