| 1 | <?php |
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| 13 | class MySQL implements DataBase { |
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| 14 | |||
| 15 | /** @var \static */ |
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| 16 | static private $instance; |
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| 17 | |||
| 18 | /** @var \PDO */ |
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| 19 | protected $pdo; |
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| 20 | |||
| 21 | public function getPDO() { |
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| 24 | |||
| 25 | /** |
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| 26 | * @return static |
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| 27 | */ |
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| 28 | static function instance() { |
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| 31 | |||
| 32 | /** |
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| 33 | * Cria uma conexão com um banco de dados |
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| 34 | * @param string[] $dbConfig |
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| 35 | */ |
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| 36 | public function __construct($dbConfig) { |
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| 45 | |||
| 46 | private function validateConnection() { |
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| 53 | |||
| 54 | } |
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| 55 |
Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.