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 | ||
| 9 | trait ApiSetTrait | ||
| 10 | { | ||
| 11 | /** | ||
| 12 | * @param Request $request | ||
| 13 | * @return mixed | ||
| 14 | */ | ||
| 15 | abstract function dispatch(Request $request); | ||
| 16 | |||
| 17 | /** | ||
| 18 | * @override | ||
| 19 | * @inheritDoc | ||
| 20 | */ | ||
| 21 | public function sScan($key, $cursor, array $options = []) | ||
| 30 | |||
| 31 | /** | ||
| 32 | * @override | ||
| 33 | * @inheritDoc | ||
| 34 | */ | ||
| 35 | public function sInter(...$keys) | ||
| 43 | |||
| 44 | /** | ||
| 45 | * @override | ||
| 46 | * @inheritDoc | ||
| 47 | */ | ||
| 48 | public function sInterStore($dst, ...$keys) | ||
| 57 | |||
| 58 | /** | ||
| 59 | * @override | ||
| 60 | * @inheritDoc | ||
| 61 | */ | ||
| 62 | public function sIsMember($key, $member) | ||
| 70 | |||
| 71 | /** | ||
| 72 | * @override | ||
| 73 | * @inheritDoc | ||
| 74 | */ | ||
| 75 | public function sLowLog($command, array $args = []) | ||
| 83 | |||
| 84 | /** | ||
| 85 | * @override | ||
| 86 | * @inheritDoc | ||
| 87 | */ | ||
| 88 | View Code Duplication | public function sMembers($key) | |
| 96 | |||
| 97 | /** | ||
| 98 | * @override | ||
| 99 | * @inheritDoc | ||
| 100 | */ | ||
| 101 | public function sMove($src, $dst, $members) | ||
| 110 | |||
| 111 | /** | ||
| 112 | * @override | ||
| 113 | * @inheritDoc | ||
| 114 | */ | ||
| 115 | View Code Duplication | public function sPop($key, $count) | |
| 123 | |||
| 124 | /** | ||
| 125 | * @override | ||
| 126 | * @inheritDoc | ||
| 127 | */ | ||
| 128 | View Code Duplication | public function sRandMember($key, $count) | |
| 136 | |||
| 137 | /** | ||
| 138 | * @override | ||
| 139 | * @inheritDoc | ||
| 140 | */ | ||
| 141 | public function sRem($key, ...$members) | ||
| 150 | |||
| 151 | /** | ||
| 152 | * @override | ||
| 153 | * @inheritDoc | ||
| 154 | */ | ||
| 155 | public function sUnion(...$keys) | ||
| 163 | |||
| 164 | /** | ||
| 165 | * @override | ||
| 166 | * @inheritDoc | ||
| 167 | */ | ||
| 168 | public function sUnionStore($dst, ...$keys) | ||
| 177 | |||
| 178 | /** | ||
| 179 | * @override | ||
| 180 | * @inheritDoc | ||
| 181 | */ | ||
| 182 | public function sWapBb($opt, $dst, ...$keys) | ||
| 191 | |||
| 192 | /** | ||
| 193 | * @override | ||
| 194 | * @inheritDoc | ||
| 195 | */ | ||
| 196 | public function sAdd($key, ...$members) | ||
| 205 | |||
| 206 | /** | ||
| 207 | * @override | ||
| 208 | * @inheritDoc | ||
| 209 | */ | ||
| 210 | View Code Duplication | public function sCard($key) | |
| 218 | |||
| 219 | /** | ||
| 220 | * @override | ||
| 221 | * @inheritDoc | ||
| 222 | */ | ||
| 223 | public function sDiff(...$keys) | ||
| 231 | |||
| 232 | /** | ||
| 233 | * @override | ||
| 234 | * @inheritDoc | ||
| 235 | */ | ||
| 236 | public function sDiffStore($dst, ...$keys) | ||
| 245 | } | ||
| 246 | 
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.