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<?php var_dump(mb_convert_case('asdf', MB_CASE_UPPER, ''));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught ValueError: mb_convert_case(): Argument #3 ($encoding) must be a valid encoding, "" given in /in/dktGi:3 Stack trace: #0 /in/dktGi(3): mb_convert_case('asdf', 0, '') #1 {main} thrown in /in/dktGi on line 3
Process exited with code 255.

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