3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { private $a = 'Bob'; } class B extends A { function __construct() { $instance = new A(); $reflection = new \ReflectionClass($instance); $property = $reflection->getProperty('a'); $property->setAccessible(true); echo $property->getValue(new A()); } } (new B());
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Bob
preferences:
125.77 ms | 404 KiB | 195 Q