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run code in 300+ PHP versions simultaneously
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Output for 8.1.0 - 8.1.23, 8.2.0 - 8.2.10
Fatal error: Type of ChildClass::$doc must be ?MarkupDocument (as in class ParentClass) in /in/El7Ve on line 11
Process exited with code 255.
Output for 8.0.1 - 8.0.30
Fatal error: Type of ChildClass::$doc must be ?MarkupDocument (as in class ParentClass) in /in/El7Ve on line 13
Process exited with code 255.

preferences:
169.37 ms | 968 KiB | 7 Q