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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11 | class FetchEntity |
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12 | { |
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13 | /** |
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14 | * @param array|object $jobData |
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15 | * @throws \InvalidArgumentException |
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16 | */ |
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17 | 2 | View Code Duplication | public function __construct($jobData = []) |
31 | |||
32 | public $unknown_fields = []; |
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33 | |||
34 | /** @var string */ |
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35 | public $uri = ""; |
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36 | |||
37 | /** @var string */ |
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38 | public $destPath = ''; |
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39 | |||
40 | /** @var bool */ |
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41 | public $extract = false; |
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42 | |||
43 | /** @var bool */ |
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44 | public $cache = false; |
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45 | |||
46 | /** @var bool */ |
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47 | public $executable = false; |
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48 | } |
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49 |
This check marks property names that have not been written in camelCase.
In camelCase names are written without any punctuation, the start of each new word being marked by a capital letter. Thus the name database connection string becomes
databaseConnectionString
.