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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| 9 | trait HasAttributesTrait |
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| 10 | { |
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| 11 | protected $_attribs; |
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| 12 | |||
| 13 | /** |
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| 14 | * @return mixed |
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| 15 | */ |
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| 16 | public function getId() |
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| 20 | |||
| 21 | /** |
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| 22 | * @param $id |
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| 23 | * @return $this |
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| 24 | */ |
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| 25 | public function setId($id) |
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| 31 | |||
| 32 | /** |
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| 33 | * @return null |
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| 34 | */ |
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| 35 | 1 | public function getName() |
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| 39 | |||
| 40 | |||
| 41 | /** |
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| 42 | * @param $name |
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| 43 | * @return $this |
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| 44 | */ |
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| 45 | 1 | public function setName($name) |
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| 51 | |||
| 52 | /** |
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| 53 | * @return string |
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| 54 | */ |
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| 55 | 1 | public function getLabel() |
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| 59 | |||
| 60 | /** |
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| 61 | * @param $label |
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| 62 | * @return $this |
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| 63 | */ |
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| 64 | 1 | public function setLabel($label) |
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| 70 | |||
| 71 | /** |
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| 72 | * @param string $requester |
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| 73 | * @return null |
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| 74 | */ |
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| 75 | 1 | public function getValue($requester = 'abstract') |
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| 79 | |||
| 80 | /** |
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| 81 | * @param $value |
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| 82 | * @return $this |
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| 83 | */ |
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| 84 | 1 | public function setValue($value) |
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| 90 | |||
| 91 | /** |
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| 92 | * @return $this |
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| 93 | */ |
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| 94 | View Code Duplication | public function addClass() |
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| 105 | |||
| 106 | /** |
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| 107 | * @return $this |
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| 108 | */ |
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| 109 | View Code Duplication | public function removeClass() |
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| 125 | |||
| 126 | /** |
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| 127 | * @param $key |
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| 128 | * @param $value |
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| 129 | * @return static |
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| 130 | */ |
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| 131 | 2 | public function setAttrib($key, $value) |
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| 138 | |||
| 139 | /** |
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| 140 | * @param string $key |
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| 141 | * @return null |
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| 142 | */ |
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| 143 | 2 | View Code Duplication | public function getAttrib($key) |
| 152 | |||
| 153 | /** |
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| 154 | * @param string $key |
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| 155 | * @return bool |
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| 156 | */ |
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| 157 | public function delAttrib($key) |
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| 164 | |||
| 165 | /** |
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| 166 | * @return mixed |
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| 167 | */ |
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| 168 | public function getAttribs() |
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| 172 | |||
| 173 | /** |
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| 174 | * @param array $attribs |
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| 175 | * @return static |
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| 176 | */ |
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| 177 | public function setAttribs(array $attribs) |
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| 183 | |||
| 184 | /** |
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| 185 | * @return static |
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| 186 | */ |
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| 187 | public function clearAttribs() |
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| 193 | |||
| 194 | /** |
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| 195 | * @param array $attribs |
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| 196 | * @return static |
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| 197 | */ |
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| 198 | public function addAttribs(array $attribs) |
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| 206 | |||
| 207 | /** |
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| 208 | * @return bool |
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| 209 | */ |
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| 210 | View Code Duplication | public function removeAttrib($key) |
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| 220 | } |
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| 221 |
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.