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 namespace EvolutionCMS\Legacy; |
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6 | class Categories |
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7 | { |
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8 | /** |
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9 | * @var DBAPI |
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10 | */ |
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11 | public $db; |
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12 | public $db_tbl = array(); |
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13 | public $elements = array('templates', 'tmplvars', 'htmlsnippets', 'snippets', 'plugins', 'modules'); |
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14 | |||
15 | public function __construct() |
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26 | |||
27 | |||
28 | /** |
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29 | * Get all categories |
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30 | * @return array $categories / array contains all categories |
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31 | */ |
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32 | public function getCategories() |
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45 | |||
46 | /** |
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47 | * @param string $search |
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48 | * @param string $where |
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49 | * @return array|bool|object|stdClass |
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50 | */ |
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51 | View Code Duplication | public function getCategory($search, $where = 'category') |
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63 | |||
64 | /** |
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65 | * @param string $value |
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66 | * @param string $search |
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67 | * @param string $where |
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68 | * @return bool|int|string |
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69 | */ |
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70 | View Code Duplication | public function getCategoryValue($value, $search, $where = 'category') |
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82 | |||
83 | /** |
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84 | * @param int $category_id |
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85 | * @param string $element |
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86 | * @return array|bool |
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87 | */ |
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88 | public function getAssignedElements($category_id, $element) |
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112 | |||
113 | /** |
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114 | * @param int $category_id |
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115 | * @return array |
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116 | */ |
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117 | public function getAllAssignedElements($category_id) |
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126 | |||
127 | /** |
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128 | * @param int $category_id |
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129 | * @return bool |
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130 | */ |
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131 | public function deleteCategory($category_id) |
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149 | |||
150 | /** |
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151 | * @param int $category_id |
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152 | * @param array $data |
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153 | * @return bool |
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154 | */ |
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155 | public function updateCategory($category_id, $data = array()) |
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178 | |||
179 | /** |
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180 | * @param string $category_name |
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181 | * @param int $category_rank |
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182 | * @return bool|int|mixed |
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183 | */ |
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184 | public function addCategory($category_name, $category_rank) |
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206 | |||
207 | /** |
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208 | * @param string $category_name |
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209 | * @return bool|int|string |
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210 | */ |
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211 | public function isCategoryExists($category_name) |
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229 | } |
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230 |
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
.