Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | <?php |
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| 16 | class ExchangeHistoryTableFeeder extends Command |
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| 17 | { |
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| 18 | /** |
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| 19 | * The name and signature of the console command. |
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| 20 | * |
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| 21 | * @var string |
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| 22 | */ |
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| 23 | protected $signature = 'history_table:feed'; |
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| 24 | |||
| 25 | /** |
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| 26 | * The console command description. |
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| 27 | * |
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| 28 | * @var string |
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| 29 | */ |
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| 30 | protected $description = 'Feed the table exchange_history from DB'; |
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| 31 | |||
| 32 | /** |
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| 33 | * Create a new command instance. |
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| 34 | * |
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| 35 | */ |
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| 36 | public function __construct() |
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| 40 | |||
| 41 | /** |
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| 42 | * Execute the console command. |
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| 43 | * |
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| 44 | * @return mixed |
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| 45 | */ |
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| 46 | public function handle() |
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| 50 | |||
| 51 | /** |
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| 52 | *Elimina les dades antigues i n'insereix unes de noves |
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| 53 | */ |
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| 54 | public function getSymbolsFormDB() |
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| 89 | |||
| 90 | /** |
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| 91 | * Aconegueix les dades de la api i fa la crida de la funció que les guardara a la BD |
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| 92 | * |
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| 93 | * @param GetMethods $interaction_methods |
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| 94 | * @param $symbol |
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| 95 | */ |
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| 96 | public function httpCall(GetMethods $interaction_methods, $symbol) |
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| 104 | |||
| 105 | /** |
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| 106 | * |
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| 107 | * Persisteix les dades al MYSQL |
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| 108 | * |
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| 109 | * @param $data |
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| 110 | */ |
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| 111 | public function storeDataInDB($data) |
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| 128 | |||
| 129 | } |
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| 130 |
If the size of the collection does not change during the iteration, it is generally a good practice to compute it beforehand, and not on each iteration: