3v4l.org

run code in 300+ PHP versions simultaneously
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Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.32, 8.2.0 - 8.2.28, 8.3.0 - 8.3.19, 8.4.1 - 8.4.5
Fatal error: Uncaught Error: Undefined constant "Linux" in /in/ra15J:1 Stack trace: #0 {main} thrown in /in/ra15J on line 1
Process exited with code 255.
Output for 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant Linux - assumed 'Linux' (this will throw an Error in a future version of PHP) in /in/ra15J on line 1 1
Output for 5.6.0 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20
Notice: Use of undefined constant Linux - assumed 'Linux' in /in/ra15J on line 1 1
preferences:
162.47 ms | 413 KiB | 5 Q