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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10 | class AdapterMemcached implements iAdapter |
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11 | { |
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12 | /** |
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13 | * @var bool |
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14 | */ |
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15 | public $installed = false; |
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16 | |||
17 | /** |
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18 | * @var \Memcached |
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19 | */ |
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20 | private $memcached; |
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21 | |||
22 | /** |
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23 | * __construct |
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24 | * |
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25 | * @param \Memcached $memcached |
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26 | */ |
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27 | 6 | public function __construct($memcached) |
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36 | |||
37 | /** |
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38 | * set Memcached settings |
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39 | */ |
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40 | 6 | private function setSettings() |
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56 | |||
57 | /** |
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58 | * set cache-item by key => value |
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59 | * |
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60 | * @param string $key |
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61 | * @param mixed $value |
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62 | * |
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63 | * @return mixed|void |
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64 | */ |
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65 | 2 | public function set($key, $value) |
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76 | |||
77 | /** |
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78 | * set cache-item by key => value + ttl |
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79 | * |
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80 | * @param string $key |
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81 | * @param mixed $value |
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82 | * @param int $ttl |
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83 | * |
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84 | * @return boolean |
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85 | */ |
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86 | 1 | public function setExpired($key, $value, $ttl) |
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94 | |||
95 | /** |
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96 | * remove cached-item by key |
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97 | * |
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98 | * @param string $key |
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99 | * |
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100 | * @return boolean |
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101 | */ |
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102 | public function remove($key) |
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106 | |||
107 | /** |
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108 | * check if cached-item exists |
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109 | * |
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110 | * @param string $key |
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111 | * |
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112 | * @return bool |
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113 | */ |
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114 | 1 | public function exists($key) |
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118 | |||
119 | /** |
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120 | * get cached-item by key |
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121 | * |
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122 | * @param String $key |
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123 | * |
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124 | * @return mixed |
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125 | */ |
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126 | 4 | View Code Duplication | public function get($key) |
138 | |||
139 | /** |
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140 | * check if cache is installed |
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141 | * |
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142 | * @return boolean |
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143 | */ |
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144 | 6 | public function installed() |
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148 | |||
149 | } |
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150 |
This error could be the result of:
1. Missing dependencies
PHP Analyzer uses your
composer.json
file (if available) to determine the dependencies of your project and to determine all the available classes and functions. It expects thecomposer.json
to be in the root folder of your repository.Are you sure this class is defined by one of your dependencies, or did you maybe not list a dependency in either the
require
orrequire-dev
section?2. Missing use statement
PHP does not complain about undefined classes in
ìnstanceof
checks. For example, the following PHP code will work perfectly fine:If you have not tested against this specific condition, such errors might go unnoticed.