3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Bar{} $foo = array( 'foo' => '', 'bar' => new Bar(), ); $bar = $foo; var_dump($foo, $bar);
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
array(2) { ["foo"]=> string(0) "" ["bar"]=> object(Bar)#1 (0) { } } array(2) { ["foo"]=> string(0) "" ["bar"]=> object(Bar)#1 (0) { } }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
array(2) { ["foo"]=> string(0) "" ["bar"]=> object(bar)(0) { } } array(2) { ["foo"]=> string(0) "" ["bar"]=> object(bar)(0) { } }

preferences:
270.91 ms | 402 KiB | 455 Q