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<?php $a = ['a', 'b', 'c']; $b = ['d', 'e', 'f', 'g']; var_export(array_map(fn(...$column) => implode($column), $a, $b));
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => 'ad', 1 => 'be', 2 => 'cf', 3 => 'g', )

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