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<?php $array = [ '7777777777', '7777777777', '6666666666', '6666666666', '2222222222', ]; array_multisort( array_map(fn($k) => $k & 1 ? PHP_INT_MAX - $k : $k, array_keys($array)), $array ); var_export($array);
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => '7777777777', 1 => '6666666666', 2 => '2222222222', 3 => '6666666666', 4 => '7777777777', )

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