3v4l.org

run code in 300+ PHP versions simultaneously
<?php class x { function y($y) { print Hello." ". $y; } } x::y('world');
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Non-static method x::y() cannot be called statically in /in/IdE56:11 Stack trace: #0 {main} thrown in /in/IdE56 on line 11
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: Non-static method x::y() should not be called statically in /in/IdE56 on line 11 Warning: Use of undefined constant Hello - assumed 'Hello' (this will throw an Error in a future version of PHP) in /in/IdE56 on line 7 Hello world
Output for 7.3.32 - 7.3.33
Warning: Use of undefined constant Hello - assumed 'Hello' (this will throw an Error in a future version of PHP) in /in/IdE56 on line 7 Hello world
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
Deprecated: Non-static method x::y() should not be called statically in /in/IdE56 on line 11 Notice: Use of undefined constant Hello - assumed 'Hello' in /in/IdE56 on line 7 Hello world
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Strict Standards: Non-static method x::y() should not be called statically in /in/IdE56 on line 11 Notice: Use of undefined constant Hello - assumed 'Hello' in /in/IdE56 on line 7 Hello world
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Hello world

preferences:
283.15 ms | 402 KiB | 457 Q