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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8 | class ContactsAPI extends API |
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9 | { |
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10 | /** |
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11 | * @var Type\FolderIdType |
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12 | */ |
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13 | protected $folderId; |
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14 | |||
15 | /** |
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16 | * @return Type\FolderIdType |
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17 | */ |
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18 | public function getFolderId() |
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26 | |||
27 | /** |
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28 | * @param Type\FolderIdType $folderId |
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29 | */ |
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30 | public function setFolderId($folderId) |
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34 | |||
35 | /** |
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36 | * @param Type\FolderIdType $folderId |
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37 | * @param array $options |
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38 | * @return Type\ContactItemType[] |
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39 | */ |
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40 | public function getContacts($folderId = null, $options = array()) |
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62 | |||
63 | /** |
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64 | * @param Type\ItemIdType $itemId |
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65 | * @return Type\ContactItemType |
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66 | */ |
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67 | public function getContact($itemId) |
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71 | |||
72 | /** |
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73 | * @param $contacts |
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74 | * @param array $options |
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75 | * @return Type\ItemIdType[] |
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76 | */ |
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77 | View Code Duplication | public function createContacts($contacts, $options = array()) |
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95 | |||
96 | View Code Duplication | public function updateContactItem(Type\ItemIdType $itemId, $changes) |
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116 | } |
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117 |
If you implement
__call
and you know which methods are available, you can improve IDE auto-completion and static analysis by adding a @method annotation to the class.This is often the case, when
__call
is implemented by a parent class and only the child class knows which methods exist: