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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| 18 | class PluginApiService |
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| 19 | { |
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| 20 | /** |
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| 21 | * Url for Api |
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| 22 | * |
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| 23 | * @var string |
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| 24 | */ |
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| 25 | private $apiUrl; |
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| 26 | |||
| 27 | /** |
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| 28 | * @var EccubeConfig |
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| 29 | */ |
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| 30 | private $eccubeConfig; |
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| 31 | |||
| 32 | /** |
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| 33 | * PluginApiService constructor. |
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| 34 | * |
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| 35 | * @param EccubeConfig $eccubeConfig |
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| 36 | */ |
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| 37 | public function __construct(EccubeConfig $eccubeConfig) |
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| 41 | |||
| 42 | /** |
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| 43 | * @return mixed |
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| 44 | */ |
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| 45 | public function getApiUrl() |
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| 53 | |||
| 54 | /** |
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| 55 | * @param mixed $apiUrl |
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| 56 | */ |
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| 57 | public function setApiUrl($apiUrl) |
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| 61 | |||
| 62 | public function getCategory() |
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| 68 | |||
| 69 | public function getPlugins($data = []) |
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| 81 | |||
| 82 | /** |
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| 83 | * API request processing |
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| 84 | * |
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| 85 | * @param string $url |
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| 86 | * @param array $data |
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| 87 | * |
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| 88 | * @return array |
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| 89 | */ |
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| 90 | public function getRequestApi($url, $data = []) |
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| 120 | |||
| 121 | /** |
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| 122 | * Get message |
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| 123 | * |
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| 124 | * @param $info |
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| 125 | * |
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| 126 | * @return string |
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| 127 | */ |
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| 128 | View Code Duplication | public function getResponseErrorMessage($info) |
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| 140 | } |
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| 141 |
Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.
Let’s take a look at an example:
As you can see in this example, the array
$myArrayis initialized the first time when the foreach loop is entered. You can also see that the value of thebarkey is only written conditionally; thus, its value might result from a previous iteration.This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.