3v4l.org

run code in 300+ PHP versions simultaneously
<?php function parseError() { return'5'; } echo parseError;
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Fatal error: Uncaught Error: Undefined constant "parseError" in /in/uD4GY:8 Stack trace: #0 {main} thrown in /in/uD4GY on line 8
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant parseError - assumed 'parseError' (this will throw an Error in a future version of PHP) in /in/uD4GY on line 8 parseError
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
Notice: Use of undefined constant parseError - assumed 'parseError' in /in/uD4GY on line 8 parseError

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