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<?php $regexEncoding = "CP1251"; var_dump(mb_regex_encoding($regexEncoding));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught ValueError: mb_regex_encoding(): Argument #1 ($encoding) must be a valid encoding, "CP1251" given in /in/g0vtF:4 Stack trace: #0 /in/g0vtF(4): mb_regex_encoding('CP1251') #1 {main} thrown in /in/g0vtF on line 4
Process exited with code 255.

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