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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15 | class CompaniesTableFeeder extends Command |
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16 | { |
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17 | /** |
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18 | * The name and signature of the console command. |
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19 | * |
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20 | * @var string |
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21 | */ |
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22 | protected $signature = 'companies_table:feed'; |
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23 | |||
24 | /** |
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25 | * The console command description. |
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26 | * |
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27 | * @var string |
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28 | */ |
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29 | protected $description = 'Feed the table companies from DB'; |
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30 | |||
31 | /** |
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32 | * Create a new command instance. |
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33 | * |
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34 | */ |
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35 | public function __construct() |
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39 | |||
40 | /** |
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41 | * Execute the console command. |
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42 | * |
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43 | * @return mixed |
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44 | */ |
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45 | public function handle() |
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49 | |||
50 | /** |
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51 | * |
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52 | */ |
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53 | public function getSymbolsFormArray() |
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88 | |||
89 | /** |
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90 | * @param GetMethods $interaction_methods |
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91 | * @param $symbol |
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92 | */ |
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93 | public function httpCall(GetMethods $interaction_methods, $symbol) |
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102 | |||
103 | /** |
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104 | * @param $data |
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105 | * @param $symbol |
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106 | */ |
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107 | public function discardRepeated($data, $symbol) |
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121 | |||
122 | /** |
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123 | * @param $data |
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124 | */ |
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125 | public function storeDataInDB($data) |
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137 | |||
138 | |||
139 | } |
If the size of the collection does not change during the iteration, it is generally a good practice to compute it beforehand, and not on each iteration: