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 ApiListTrait |
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| 10 | { |
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| 11 | /** |
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| 12 | * @param Request $request |
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| 13 | * @return mixed |
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| 14 | */ |
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| 15 | abstract function dispatch(Request $request); |
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| 16 | |||
| 17 | /** |
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| 18 | * @override |
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| 19 | * @inheritDoc |
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| 20 | */ |
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| 21 | View Code Duplication | public function blPop(array $keys, $timeout) |
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| 43 | |||
| 44 | /** |
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| 45 | * @override |
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| 46 | * @inheritDoc |
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| 47 | */ |
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| 48 | View Code Duplication | public function brPop(array $keys, $timeout) |
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| 70 | |||
| 71 | /** |
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| 72 | * @override |
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| 73 | * @inheritDoc |
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| 74 | */ |
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| 75 | public function brPopLPush($src, $dst, $timeout) |
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| 83 | |||
| 84 | /** |
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| 85 | * @override |
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| 86 | * @inheritDoc |
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| 87 | */ |
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| 88 | public function lIndex($key, $index) |
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| 96 | |||
| 97 | /** |
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| 98 | * @override |
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| 99 | * @inheritDoc |
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| 100 | */ |
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| 101 | public function lInsert($key, $action, $pivot, $value) |
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| 109 | |||
| 110 | /** |
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| 111 | * @override |
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| 112 | * @inheritDoc |
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| 113 | */ |
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| 114 | View Code Duplication | public function lLen($key) |
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| 122 | |||
| 123 | /** |
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| 124 | * @override |
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| 125 | * @inheritDoc |
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| 126 | */ |
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| 127 | View Code Duplication | public function lPop($key) |
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| 135 | |||
| 136 | /** |
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| 137 | * @override |
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| 138 | * @inheritDoc |
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| 139 | */ |
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| 140 | public function lPush($key,...$values) |
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| 147 | |||
| 148 | public function lPushX($key, $value) |
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| 155 | |||
| 156 | /** |
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| 157 | * @override |
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| 158 | * @inheritDoc |
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| 159 | */ |
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| 160 | public function lRange($key, $start = 0, $stop = -1) |
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| 167 | |||
| 168 | /** |
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| 169 | * @override |
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| 170 | * @inheritDoc |
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| 171 | */ |
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| 172 | public function lRem($key, $count, $value) |
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| 180 | |||
| 181 | /** |
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| 182 | * @override |
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| 183 | * @inheritDoc |
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| 184 | */ |
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| 185 | public function lSet($key, $index, $value) |
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| 193 | |||
| 194 | /** |
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| 195 | * @override |
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| 196 | * @inheritDoc |
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| 197 | */ |
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| 198 | public function lTrim($key, $start, $stop) |
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| 206 | |||
| 207 | /** |
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| 208 | * @override |
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| 209 | * @inheritDoc |
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| 210 | */ |
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| 211 | View Code Duplication | public function rPop($key) |
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| 218 | |||
| 219 | /** |
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| 220 | * @override |
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| 221 | * @inheritDoc |
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| 222 | */ |
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| 223 | View Code Duplication | public function rPopLPush($src, $dst) |
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| 231 | |||
| 232 | /** |
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| 233 | * @override |
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| 234 | * @inheritDoc |
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| 235 | */ |
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| 236 | public function rPush($key, ...$values) |
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| 244 | |||
| 245 | /** |
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| 246 | * @override |
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| 247 | * @inheritDoc |
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| 248 | */ |
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| 249 | public function rPushX($key, $value) |
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| 256 | } |
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| 257 |
Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.