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run code in 300+ PHP versions simultaneously
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Output for 8.1.0 - 8.1.32, 8.2.0 - 8.2.28, 8.3.5 - 8.3.19, 8.4.1 - 8.4.5
enum(qux::foo)
Output for 8.0.1 - 8.0.27
Parse error: syntax error, unexpected identifier "qux" in /in/84W92 on line 3
Process exited with code 255.
Output for 4.3.0
Parse error: parse error, unexpected T_STRING in /in/84W92 on line 3
Process exited with code 255.

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