3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(0); class foo { function bar() { echo "this is " . (is_null($this) ? 'not ' : '') . "null\n"; } } foo::bar(); (new foo)->bar();
Output for 7.1.0 - 7.1.25, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6

Process exited with code 255.
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20
this is not null this is null
preferences:
185.69 ms | 402 KiB | 241 Q