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 ApiSetTrait |
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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 $request); |
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16 | |||
17 | /** |
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18 | * @override |
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19 | * @inheritDoc |
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20 | */ |
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21 | public function sScan($key, $cursor, array $options = []) |
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29 | |||
30 | /** |
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31 | * @override |
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32 | * @inheritDoc |
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33 | */ |
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34 | public function sInter(...$keys) |
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41 | |||
42 | /** |
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43 | * @override |
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44 | * @inheritDoc |
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45 | */ |
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46 | 1 | public function sInterStore($dst, ...$keys) |
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54 | |||
55 | /** |
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56 | * @override |
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57 | * @inheritDoc |
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58 | */ |
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59 | 1 | public function sIsMember($key, $member) |
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66 | |||
67 | /** |
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68 | * @override |
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69 | * @inheritDoc |
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70 | */ |
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71 | 1 | View Code Duplication | public function sMembers($key) |
78 | |||
79 | /** |
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80 | * @override |
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81 | * @inheritDoc |
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82 | */ |
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83 | 1 | View Code Duplication | public function sMove($src, $dst, $member) |
90 | |||
91 | /** |
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92 | * @override |
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93 | * @inheritDoc |
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94 | */ |
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95 | 1 | View Code Duplication | public function sPop($key, $count) |
102 | |||
103 | /** |
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104 | * @override |
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105 | * @inheritDoc |
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106 | */ |
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107 | 1 | View Code Duplication | public function sRandMember($key, $count) |
114 | |||
115 | /** |
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116 | * @override |
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117 | * @inheritDoc |
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118 | */ |
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119 | 1 | public function sRem($key, ...$members) |
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127 | |||
128 | /** |
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129 | * @override |
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130 | * @inheritDoc |
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131 | */ |
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132 | 1 | public function sUnion(...$keys) |
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139 | |||
140 | /** |
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141 | * @override |
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142 | * @inheritDoc |
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143 | */ |
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144 | 1 | public function sUnionStore($dst, ...$keys) |
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152 | |||
153 | |||
154 | /** |
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155 | * @override |
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156 | * @inheritDoc |
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157 | */ |
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158 | 14 | public function sAdd($key, ...$members) |
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166 | |||
167 | /** |
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168 | * @override |
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169 | * @inheritDoc |
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170 | */ |
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171 | 1 | View Code Duplication | public function sCard($key) |
178 | |||
179 | /** |
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180 | * @override |
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181 | * @inheritDoc |
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182 | */ |
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183 | 1 | public function sDiff(...$keys) |
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190 | |||
191 | /** |
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192 | * @override |
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193 | * @inheritDoc |
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194 | */ |
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195 | 1 | public function sDiffStore($dst, ...$keys) |
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203 | } |
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204 |
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.