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                的*PHP數據對象*(PDO)擴展定義為在PHP訪問數據庫的輕量級的,一致的接口。每個實現PDO接口的數據庫驅動程序都可以將特定于數據庫的功能公開為常規擴展功能。請注意,您不能單獨使用PDO擴展名執行任何數據庫功能。您必須使用[特定](https://www.php.net/manual/en/pdo.drivers.php)于[數據庫的PDO驅動程序](https://www.php.net/manual/en/pdo.drivers.php)來訪問數據庫服務器。 PDO提供了一個*數據訪問*抽象層,這意味著,無論您使用的是哪個數據庫,您都可以使用相同的功能來發出查詢和獲取數據。PDO并*沒有*提供*數據庫*抽象;它不會重寫SQL或模擬缺少的功能。如果需要該功能,則應使用完整的抽象層。 PDO隨PHP 5.1一起提供,并且可作為PHP 5.0的PECL擴展使用。PDO在PHP 5的核心中需要新的OO功能,因此不會在PHP的早期版本中運行。 PDO支持的數據庫 | 驅動名稱 | 支持的數據庫 | | --- | --- | | [PDO\_CUBRID](https://www.php.net/manual/zh/ref.pdo-cubrid.php) | Cubrid | | [PDO\_DBLIB](https://www.php.net/manual/zh/ref.pdo-dblib.php) | FreeTDS / Microsoft SQL Server / Sybase | | [PDO\_FIREBIRD](https://www.php.net/manual/zh/ref.pdo-firebird.php) | Firebird/Interbase 6 | | [PDO\_IBM](https://www.php.net/manual/zh/ref.pdo-ibm.php) | IBM DB2 | | [PDO\_INFORMIX](https://www.php.net/manual/zh/ref.pdo-informix.php) | IBM Informix Dynamic Server | | [PDO\_MYSQL](https://www.php.net/manual/zh/ref.pdo-mysql.php) | MySQL 3.x/4.x/5.x | | [PDO\_OCI](https://www.php.net/manual/zh/ref.pdo-oci.php) | Oracle Call Interface | | [PDO\_ODBC](https://www.php.net/manual/zh/ref.pdo-odbc.php) | ODBC v3 (IBM DB2, unixODBC and win32 ODBC) | | [PDO\_PGSQL](https://www.php.net/manual/zh/ref.pdo-pgsql.php) | PostgreSQL | | [PDO\_SQLITE](https://www.php.net/manual/zh/ref.pdo-sqlite.php) | SQLite 3 及 SQLite 2 | | [PDO\_SQLSRV](https://www.php.net/manual/zh/ref.pdo-sqlsrv.php) | Microsoft SQL Server / SQL Azure | | [PDO\_4D](https://www.php.net/manual/zh/ref.pdo-4d.php) | 4D | ***** mysql連接 ``` $dsn = 'mysql:dbname=testdb;host=127.0.0.1'; $user = 'dbuser'; $password = 'dbpass'; try { $dbh = new PDO($dsn, $user, $password); } catch (PDOException $e) { echo 'Connection failed: ' . $e->getMessage(); } ``` Oracle連接 PDO("oci:dbname=//oracle遠程IP:端口號/數據庫名",用戶名,密碼);oci要小寫 `$dsn_con="oci:host=192.168.4.12;dbname=ORCL;charset=UTF8;prot=1521";` 或者 `$dsn_con="oci:dbname=//192.168.4.12:1521/ORCL;charset=UTF8";` 連接本機 ``` $db_username = "youusername"; $db_password = "yourpassword"; $db = "oci:dbname=yoursid(數據庫名)"; $conn = new PDO($db,$db_username,$db_password); $param = $_POST; $name = $param['module']; $file = $param['file']; $stmt = $conn->exec("INSERT INTO AL_MODULE (AL_MODULENAME, AL_MODULEFILE) VALUES ('$name', '$file')"); ```
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