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<?php $a = range(1, 1000); var_dump(array_change_keys($a, function ($k, $v) { return md5($v); }));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Call to undefined function array_change_keys() in /in/3vdas:5 Stack trace: #0 {main} thrown in /in/3vdas on line 5
Process exited with code 255.

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