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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12 | class BaseModel extends Model |
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13 | { |
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14 | /** |
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15 | * @var string |
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16 | */ |
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17 | public static $tag; |
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18 | |||
19 | /** |
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20 | * @var string[] |
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21 | */ |
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22 | public static function getTagProperties() { |
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25 | |||
26 | 9 | /** |
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27 | * @return string[] |
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28 | 9 | */ |
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29 | public function getYmlAttributes() |
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33 | |||
34 | 9 | /** |
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35 | * @return string |
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36 | 9 | */ |
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37 | public function getYml() |
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47 | |||
48 | /** |
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49 | * @param array $params |
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50 | */ |
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51 | public function setParams(array $params) |
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55 | |||
56 | /** |
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57 | * @param array $pictures |
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58 | */ |
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59 | public function setPictures(array $pictures) |
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63 | |||
64 | 9 | /** |
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65 | * @param array $options |
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66 | 9 | */ |
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67 | 9 | public function setDeliveryOptions(array $options) |
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71 | 9 | ||
72 | /** |
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73 | * @param $data |
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74 | * @param null $onValidationError |
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75 | * |
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76 | * @return bool |
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77 | 9 | * @throws Exception |
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78 | */ |
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79 | 9 | public function loadAndValidate($data, $onValidationError = null) |
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94 | |||
95 | /** |
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96 | * @param $valuesModel |
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97 | * @param null $onValidationError |
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98 | 9 | * |
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99 | * @return bool |
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100 | 9 | * @throws Exception |
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101 | 9 | */ |
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102 | public function loadModel($valuesModel, $onValidationError = null) |
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130 | 9 | ||
131 | /** |
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132 | * @return string |
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133 | 9 | */ |
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134 | View Code Duplication | protected function getYmlStartTag() |
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143 | |||
144 | /** |
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145 | * @return string |
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146 | */ |
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147 | View Code Duplication | protected function getYmlEndTag() |
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156 | |||
157 | /** |
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158 | * @return string |
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159 | */ |
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160 | protected function getYmlBody() |
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164 | |||
165 | /** |
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166 | * @return string |
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167 | */ |
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168 | protected function getYmlTagProperties() |
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182 | |||
183 | /** |
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184 | * @param string $attribute |
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185 | * @return string |
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186 | */ |
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187 | protected function getAttributeValue($attribute) |
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191 | |||
192 | /** |
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193 | * @param string $attribute |
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194 | * @return string |
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195 | */ |
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196 | protected function getYmlAttribute($attribute) |
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212 | } |
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213 |
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.