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<?php $flags = array('utf-8,gzip,html,external'); $flags = explode(',', $flags); $flags = array_diff($flags, ['wikitext']); var_dump($flags); $flags = array_diff($flags, ['html']); var_dump($flags);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: explode(): Argument #2 ($string) must be of type string, array given in /in/Xs7VW:4 Stack trace: #0 /in/Xs7VW(4): explode(',', Array) #1 {main} thrown in /in/Xs7VW on line 4
Process exited with code 255.

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