3v4l.org

run code in 300+ PHP versions simultaneously
<?php class B { private $x = 'b'; } class C extends B { private $x = 'c'; } var_export((array)(new C));
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
array ( '' . "\0" . 'B' . "\0" . 'x' => 'b', '' . "\0" . 'C' . "\0" . 'x' => 'c', )
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
array ( '' . "\0" . 'C' . "\0" . 'x' => 'c', '' . "\0" . 'B' . "\0" . 'x' => 'b', )
preferences:
222.4 ms | 408 KiB | 5 Q