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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Db\Connection; |
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use Stringable; |
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/** |
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* The Dsn class is typically used to parse a DSN string, which is a string that contains all the necessary information |
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* to connect to a database, such as the database driver, hostname, database name, port and options. |
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* |
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* It also allows you to access individual components of the DSN, such as the driver or the database name. |
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*/ |
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final class Dsn implements Stringable |
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{ |
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public function __construct( |
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private string $driver, |
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private string $host, |
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private string $databaseName, |
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private string|null $port = null, |
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private array $options = [] |
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) { |
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} |
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/** |
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* @return string The Data Source Name, or DSN, contains the information required to connect to the database. |
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* |
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* Please refer to the [PHP manual](http://php.net/manual/en/pdo.construct.php) on the format of the DSN string. |
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* |
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* The `driver` array key is used as the driver prefix of the DSN, all further key-value pairs are rendered as |
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* `key=value` and concatenated by `;`. For example: |
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* |
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* ```php |
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* $dsn = new Dsn('mysql', '127.0.0.1', 'yiitest', '3306'); |
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* $connection = new Connection($this->cache, $this->logger, $this->profiler, $dsn->getDsn()); |
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* ``` |
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* |
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* Will result in the DSN string `mysql:host=127.0.0.1;dbname=yiitest;port=3306`. |
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*/ |
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public function asString(): string |
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{ |
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$dsn = "$this->driver:" . "host=$this->host" . ';' . "dbname=$this->databaseName"; |
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if ($this->port !== null) { |
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$dsn .= ';' . "port=$this->port"; |
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} |
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$parts = []; |
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/** @psalm-var string[] */ |
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$options = $this->options; |
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foreach ($options as $key => $value) { |
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$parts[] = "$key=$value"; |
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} |
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if (!empty($parts)) { |
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$dsn .= ';' . implode(';', $parts); |
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} |
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return $dsn; |
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} |
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/** |
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* @return string The Data Source Name, or DSN, contains the information required to connect to the database. |
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*/ |
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public function __toString(): string |
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{ |
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return $this->asString(); |
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} |
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/** |
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* @return string The database name to connect to. |
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*/ |
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public function getDatabaseName(): string |
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{ |
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return $this->databaseName; |
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} |
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/** |
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* @return string The database driver name. |
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*/ |
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public function getDriver(): string |
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{ |
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return $this->driver; |
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} |
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/** |
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* @return array The database host name or IP address. |
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*/ |
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public function getHost(): string |
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{ |
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return $this->host; |
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} |
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/** |
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* @return array The database connection options. Default value to an empty array. |
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*/ |
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public function getOptions(): array |
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{ |
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return $this->options; |
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} |
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/** |
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* @return array The database port. Null if not set. |
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*/ |
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public function getPort(): string|null |
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{ |
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return $this->port; |
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} |
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} |
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yiisoft /
db
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