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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| 5 | class SubsetContainer extends \SplHeap { |
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| 6 | |||
| 7 | /** |
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| 8 | * @var BasePartitionAlgorithm |
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| 9 | */ |
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| 10 | protected $algo; |
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| 11 | |||
| 12 | /** |
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| 13 | * Override compare method. |
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| 14 | * |
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| 15 | * @param Subset $a |
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| 16 | * @param Subset $b |
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| 17 | * |
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| 18 | * @return int |
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| 19 | */ |
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| 20 | public function compare($a, $b) { |
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| 21 | $al = $a->getAlgo()->getSubsetWeight($a); |
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| 22 | $bl = $b->getAlgo()->getSubsetWeight($b); |
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| 23 | |||
| 24 | if ($al == $bl) { |
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| 25 | return 0; |
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| 26 | } |
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| 27 | return ($al > $bl) ? -1 : +1; |
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| 28 | } |
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| 29 | |||
| 30 | /** |
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| 31 | * @param $partition |
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| 32 | */ |
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| 33 | public function setPartition($partition) { |
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| 34 | for($i=0; $i<$partition; $i++) { |
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| 35 | $subset = new Subset(); |
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| 36 | $subset->setAlgo($this->getAlgo()); |
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| 37 | $this->insert($subset); |
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| 38 | } |
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| 39 | } |
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| 40 | |||
| 41 | /** |
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| 42 | * @param SubsetItem[] $items |
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| 43 | */ |
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| 44 | public function addItemsToSubset(array $items = array()) { |
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| 49 | |||
| 50 | /** |
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| 51 | * @param \drupol\phpartition\SubsetItem $item |
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| 52 | */ |
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| 53 | public function addItemToSubset(SubsetItem $item) { |
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| 59 | |||
| 60 | /** |
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| 61 | * @return Subset[] |
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| 62 | */ |
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| 63 | View Code Duplication | public function getSubsets() { |
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| 73 | |||
| 74 | /** |
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| 75 | * @return array |
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| 76 | */ |
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| 77 | View Code Duplication | public function getSubsetsAndItemsAsArray() { |
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| 86 | |||
| 87 | /** |
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| 88 | * @param \drupol\phpartition\BasePartitionAlgorithm $algo |
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| 89 | */ |
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| 90 | public function setAlgo(BasePartitionAlgorithm $algo) { |
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| 93 | |||
| 94 | /** |
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| 95 | * @return BasePartitionAlgorithm |
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| 96 | */ |
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| 97 | public function getAlgo() { |
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| 100 | |||
| 101 | } |
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| 102 |
Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum.