Fatal error: Cannot use isset() on the result of an expression (you can use "null !== expression" instead) in /in/UT1Gc on line 5
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35
Fatal error: Arrays are not allowed as constants in /in/UT1Gc on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/UT1Gc on line 3
Process exited with code 255.