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<?php $results = array ( 0 => array ( 'id' => 1, 'name' => 'a', 'country' => 'x' ), 1 => array ( 'id' => 2, 'name' => 'b', 'country' => 'y' ) ); array_unshift($results, array_combine(array_keys($results[0]), array_keys($results[0]))); print_r($results);

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