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<?php $a = array('protein' => 'proteiny', 'total_fat' => 'total faty', 'carbohydrates' => 'carbohydrates', 'food_energy' => 'food energy'); $b = array('protein' => 'grams', 'total_fat' => 'grams', 'carbohydrates' => 'grams', 'food_energy' => 'kcals'); foreach($a as $k => $e) { $res[] = array('slug' => $k, 'name' => $e, 'format' => $b[$k]); } print_r($res);

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