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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18 | class ProxyRestriction extends AbstractCondition |
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19 | { |
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20 | /** |
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21 | * @var int|null |
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22 | */ |
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23 | protected $count; |
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24 | |||
25 | /** |
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26 | * @var string[]|null |
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27 | */ |
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28 | protected $audience; |
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29 | |||
30 | /** |
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31 | * @param int $count |
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32 | * @param string[] $audience |
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33 | */ |
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34 | 9 | public function __construct($count = null, array $audience = null) |
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39 | |||
40 | /** |
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41 | * @param string $audience |
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42 | * |
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43 | * @return ProxyRestriction |
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44 | */ |
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45 | public function addAudience($audience) |
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54 | |||
55 | /** |
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56 | * @return null|\string[] |
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57 | */ |
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58 | 2 | public function getAllAudience() |
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62 | |||
63 | /** |
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64 | * @param int|null $count |
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65 | * |
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66 | * @return ProxyRestriction |
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67 | */ |
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68 | public function setCount($count) |
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74 | |||
75 | /** |
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76 | * @return int|null |
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77 | */ |
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78 | 3 | public function getCount() |
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82 | |||
83 | /** |
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84 | * @param \DOMNode $parent |
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85 | * @param SerializationContext $context |
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86 | * |
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87 | * @return void |
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88 | */ |
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89 | View Code Duplication | public function serialize(\DOMNode $parent, SerializationContext $context) |
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97 | |||
98 | /** |
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99 | * @param \DOMNode $node |
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100 | * @param DeserializationContext $context |
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101 | */ |
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102 | View Code Duplication | public function deserialize(\DOMNode $node, DeserializationContext $context) |
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110 | } |
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111 |
When comparing two booleans, it is generally considered safer to use the strict comparison operator.