3v4l.org

run code in 300+ PHP versions simultaneously
<?php class First extends Second{} class Second extends Third{} class Fourth {} class Third{}
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.16, 8.3.0 - 8.3.3
Fatal error: Uncaught Error: Class "Second" not found in /in/FVv7A:3 Stack trace: #0 {main} thrown in /in/FVv7A on line 3
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Class 'Second' not found in /in/FVv7A:3 Stack trace: #0 {main} thrown in /in/FVv7A on line 3
Process exited with code 255.
Output for 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 - 7.2.34
Fatal error: Class 'Second' not found in /in/FVv7A on line 3
Process exited with code 255.

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