Instalação
The most recent version of the driver is available for download here: » SQLSRV download. The driver sources are hosted in a » public repository.
For more information about system requirements, see » SQLSRV System Requirements.
On Windows the PDO_SQLSRV extension is enabled by downloading and adding appropriate DLL files to the PHP extension directory and the corresponding entry to the php.ini file.
On Linux and macOS, the PDO_SQLSRV extension can be installed using » PECL. See the » installation tutorial for details.
Constantes pré-definidas
As constantes abaixo são definidas por este driver e só estarão disponíveis quando a extensão tiver sido compilada no PHP ou tiver sido carregada dinamicamente em tempo de execução. Além disso, estas constantes específicas do driver só devem ser usadas se este driver estiver sendo usado. Usar atributos específicos de um driver com outro driver pode resultar em comportamento inesperado. PDO::getAttribute() pode ser usada para obter o atributo PDO::ATTR_DRIVER_NAME para verificar o driver, se o código puder ser executado com vários drivers.
PDO::SQLSRV_TXN_READ_UNCOMMITTED (int) - This constant is an acceptable value for the SQLSRV DSN key TransactionIsolation. This constant sets the transaction isolation level for the connection to Read Uncommitted.
PDO::SQLSRV_TXN_READ_COMMITTED (int) - This constant is an acceptable value for the SQLSRV DSN key TransactionIsolation. This constant sets the transaction isolation level for the connection to Read Committed.
PDO::SQLSRV_TXN_REPEATABLE_READ (int) - This constant is an acceptable value for the SQLSRV DSN key TransactionIsolation. This constant sets the transaction isolation level for the connection to Repeateable Read.
PDO::SQLSRV_TXN_SNAPSHOT (int) - This constant is an acceptable value for the SQLSRV DSN key TransactionIsolation. This constant sets the transaction isolation level for the connection to Snapshot.
PDO::SQLSRV_TXN_SERIALIZABLE (int) - This constant is an acceptable value for the SQLSRV DSN key TransactionIsolation. This constant sets the transaction isolation level for the connection to Serializable.
PDO::SQLSRV_ENCODING_BINARY (int) - Specifies that data is sent/retrieved as a raw byte stream to/from the server without performing encoding or translation. This constant can be passed to PDOStatement::setAttribute, PDO::prepare, PDOStatement::bindColumn, and PDOStatement::bindParam.
PDO::SQLSRV_ENCODING_SYSTEM (int) - Specifies that data is sent/retrieved to/from the server as 8-bit characters as specified in the code page of the Windows locale that is set on the system. Any multi-byte characters or characters that do not map into this code page are substituted with a single byte question mark (?) character. This constant can be passed to PDOStatement::setAttribute, PDO::setAttribute, PDO::prepare, PDOStatement::bindColumn, and PDOStatement::bindParam.
PDO::SQLSRV_ENCODING_UTF8 (int) - Specifies that data is sent/retrieved to/from the server in UTF-8 encoding. This is the default encoding. This constant can be passed to PDOStatement::setAttribute, PDO::setAttribute, PDO::prepare, PDOStatement::bindColumn, and PDOStatement::bindParam.
PDO::SQLSRV_ENCODING_DEFAULT (int) - Specifies that data is sent/retrieved to/from the server according to PDO::SQLSRV_ENCODING_SYSTEM if specified during connection. The connection's encoding is used if specified in a prepare statement. This constant can be passed to PDOStatement::setAttribute, PDO::setAttribute, PDO::prepare, PDOStatement::bindColumn, and PDOStatement::bindParam.
PDO::SQLSRV_ATTR_QUERY_TIMEOUT (int) - A non-negative integer representing the timeout period, in seconds. Zero (0) is the default and means no timeout. This constant can be passed to PDOStatement::setAttribute, PDO::setAttribute, and PDO::prepare.
PDO::SQLSRV_ATTR_DIRECT_QUERY (int) - Indicates that a query should be executed directly, without being prepared. This constant can be passed to PDO::setAttribute, and PDO::prepare. For more information, see » Direct and Prepared Statement Execution.
