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<?php $board = [ ['a', 'b', 'c'], ['d', 'e', 'f'], ['g', 'h', 'i'], ]; var_export(array_map(null, ...$board));
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => array ( 0 => 'a', 1 => 'd', 2 => 'g', ), 1 => array ( 0 => 'b', 1 => 'e', 2 => 'h', ), 2 => array ( 0 => 'c', 1 => 'f', 2 => 'i', ), )

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