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<?php $a = 1; fwrite('php://stdout', $a);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: fwrite(): Argument #1 ($stream) must be of type resource, string given in /in/g1uPi:5 Stack trace: #0 /in/g1uPi(5): fwrite('php://stdout', 1) #1 {main} thrown in /in/g1uPi on line 5
Process exited with code 255.
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, 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
Warning: fwrite() expects parameter 1 to be resource, string given in /in/g1uPi on line 5
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
Warning: fwrite(): supplied argument is not a valid stream resource in /in/g1uPi on line 5

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