$value) : $key_itself = $value[$key_search]; // = PC or MAC // Check if the key has already been used if(!in_array($key_itself,$tracking_keywords)) $sorted_products[] = array( 'product' => $value['produkt'], 'type' => $value['type'] ); // Insert all used key's to avoid duplicates in a new array $tracking_keywords[] = $key_itself; endforeach; return $sorted_products; // Returns an array } // The complete product list $products = [ ['produkt' => 'pc', 'type' => 'laptop1'], ['produkt' => 'pc', 'type' => 'stasjonær'], ['produkt' => 'pc', 'type' => 'laptop'], ['produkt' => 'pc', 'type' => 'screen'], ['produkt' => 'mac', 'type' => 'laptop1'], ['produkt' => 'mac', 'type' => 'laptop'], ['produkt' => 'mac', 'type' => 'screen'] ]; // Sorted products $sorted_products = keepFirstRemoveDuplicates($products,'produkt'); // Clean listing output echo "
";
print_r($sorted_products);
echo "
";