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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| 28 | View Code Duplication | class LuckyMoney |
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2 ignored issues
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| 29 | { |
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| 30 | /** |
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| 31 | * @var API |
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| 32 | */ |
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| 33 | protected $api; |
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| 34 | |||
| 35 | /** |
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| 36 | * Merchant instance. |
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| 37 | * |
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| 38 | * @var \EasyWeChat\Payment\Merchant |
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| 39 | */ |
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| 40 | protected $merchant; |
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| 41 | |||
| 42 | /** |
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| 43 | * Constructor. |
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| 44 | * |
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| 45 | * @param Merchant $merchant |
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| 46 | */ |
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| 47 | public function __construct(Merchant $merchant) |
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| 51 | |||
| 52 | /** |
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| 53 | * Merchant setter. |
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| 54 | * |
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| 55 | * @param Merchant $merchant |
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| 56 | */ |
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| 57 | public function setMerchant(Merchant $merchant) |
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| 61 | |||
| 62 | /** |
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| 63 | * Merchant getter. |
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| 64 | * |
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| 65 | * @return Merchant |
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| 66 | */ |
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| 67 | public function getMerchant() |
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| 71 | |||
| 72 | /** |
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| 73 | * API setter. |
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| 74 | * |
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| 75 | * @param API $api |
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| 76 | */ |
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| 77 | public function setAPI(API $api) |
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| 81 | |||
| 82 | /** |
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| 83 | * Return API instance. |
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| 84 | * |
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| 85 | * @return API |
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| 86 | */ |
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| 87 | public function getAPI() |
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| 91 | |||
| 92 | /** |
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| 93 | * Magic call. |
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| 94 | * |
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| 95 | * @param string $method |
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| 96 | * @param array $args |
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| 97 | * |
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| 98 | * @return mixed |
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| 99 | * |
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| 100 | * @codeCoverageIgnore |
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| 101 | */ |
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| 102 | public function __call($method, $args) |
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| 108 | } |
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| 109 |
This check looks for classes that have been defined more than once.
If you can, we would recommend to use standard object-oriented programming techniques. For example, to avoid multiple types, it might make sense to create a common interface, and then multiple, different implementations for that interface.
This also has the side-effect of providing you with better IDE auto-completion, static analysis and also better OPCode caching from PHP.