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<?php |
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namespace Willry\QueryBuilder; |
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/** |
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* Class Connect Singleton Pattern |
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*/ |
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class Connect |
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{ |
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/** @var array */ |
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private static $instance; |
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/** @var \Exception|null */ |
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private static $error = null; |
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private static $configurations = []; |
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/** |
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* Connect constructor. Private singleton |
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*/ |
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private function __construct() |
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{ |
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} |
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/** |
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* Connect clone. Private singleton |
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*/ |
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private function __clone() |
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{ |
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} |
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public static function getInstance($dbName = null, $regenerateConnection = false): ?\PDO |
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{ |
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$configurations = self::$configurations ?? []; |
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$default = reset($configurations); |
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$dbConf = $configurations[$dbName] ?? $default; |
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$dbDsn = $dbConf["driver"] . ":host=" . $dbConf["host"] . ";dbname=" . $dbConf["dbname"] . ";port=" . $dbConf["port"]; |
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//DSN alternative for SQL Server (sqlsrv) |
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if ($dbConf['driver'] == 'sqlsrv') { |
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$dbDsn = $dbConf["driver"] . ":Server=" . $dbConf["host"] . "," . $dbConf["port"] . ";Database=" . $dbConf["dbname"]; |
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} |
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if (empty(self::$instance[$dbName]) || $regenerateConnection) { |
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try { |
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self::$instance[$dbName] = new \PDO( |
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$dbDsn, |
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$dbConf["username"], |
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$dbConf["passwd"], |
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$dbConf["options"] |
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); |
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} catch (\PDOException $exception) { |
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self::$error = $exception; |
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} |
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} |
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return self::$instance[$dbName]; |
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} |
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/** |
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* @return \Exception|null |
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*/ |
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public static function getError(): ?\Exception |
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{ |
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return self::$error; |
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} |
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public static function config(array $configurations) |
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{ |
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self::$configurations = $configurations; |
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} |
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public static function getConfig(string $connectionName): ?array |
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{ |
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return self::$configurations[$connectionName] ?? null; |
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} |
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} |
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WillRy /
querybuilder
