PDO_INFORMIX-DSN(3) 1 PDO_INFORMIX-DSN(3)PDO_INFORMIX DSN - Connecting to Informix databases
The PDO_INFORMIX Data Source Name (DSN) is based on the Informix ODBC DSN string. Details on configuring an Informix ODBC DSN are avail-
able from the Informix Dynamic Server Information Center. The major components of the PDO_INFORMIX DSN are:
o DSN prefix
- The DSN prefix is informix:.
o DSN
- The DSN can be either a data source setup using odbc.ini or a complete connection string.
Example #1
PDO_INFORMIX DSN example using odbc.ini
The following example shows a PDO_INFORMIX DSN for connecting to an Informix database cataloged as Infdrv33 in odbc.ini:
$db = new PDO("informix:DSN=Infdrv33", "", "");
[ODBC Data Sources]
Infdrv33=INFORMIX 3.3 32-BIT
[Infdrv33]
Driver=/opt/informix/csdk_2.81.UC1G2/lib/cli/iclis09b.so
Description=INFORMIX 3.3 32-BIT
Database=common_db
LogonID=testuser
pwd=testpass
Servername=ids_server
DB_LOCALE=en_US.819
OPTIMIZEAUTOCOMMIT=1
ENABLESCROLLABLECURSORS=1
Example #2
PDO_INFORMIX DSN example using a connection string
The following example shows a PDO_INFORMIX DSN for connecting to an Informix database named common_db using the Informix connection
string syntax.
$db = new PDO("informix:host=host.domain.com; service=9800;
database=common_db; server=ids_server; protocol=onsoctcp;
EnableScrollableCursors=1", "testuser", "tespass");
PHP Documentation Group PDO_INFORMIX-DSN(3)
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PDO_SQLSRV-DSN(3) 1 PDO_SQLSRV-DSN(3)PDO_SQLSRV DSN - Connecting to MS SQL Server and SQL Azure databases
The PDO_SQLSRV Data Source Name (DSN) is composed of the following elements:
o DSN prefix
- The DSN prefix is sqlsrv:.
o APP - The application name used in tracing.
o ConnectionPooling - Specifies whether the connection is assigned from a connection pool (1 or TRUE) or not (0 or FALSE).
o Database - The name of the database.
o Encrypt - Specifies whether the communication with SQL Server is encrypted (1 or TRUE) or unencrypted (0 or FALSE).
o Failover_Partner - Specifies the server and instance of the database's mirror (if enabled and configured) to use when the primary
server is unavailable.
o LoginTimeout - Specifies the number of seconds to wait before failing the connection attempt.
o MultipleActiveResultSets - Disables or explicitly enables support for multiple active Result sets (MARS).
o QuotedId - Specifies whether to use SQL-92 rules for quoted identifiers (1 or TRUE) or to use legacy Transact-SQL rules (0 or
false).
o Server - The name of the database server.
o TraceFile - Specifies the path for the file used for trace data.
o TraceOn - Specifies whether ODBC tracing is enabled (1 or TRUE) or disabled (0 or FALSE) for the connection being established.
o TransactionIsolation - Specifies the transaction isolation level. The accepted values for this option are PDO::SQL-
SRV_TXN_READ_UNCOMMITTED, PDO::SQLSRV_TXN_READ_COMMITTED, PDO::SQLSRV_TXN_REPEATABLE_READ, PDO::SQLSRV_TXN_SNAPSHOT, and PDO::SQL-
SRV_TXN_SERIALIZABLE.
o TrustServerCertificate - Specifies whether the client should trust (1 or TRUE) or reject (0 or FALSE) a self-signed server cer-
tificate.
o WSID - Specifies the name of the computer for tracing.
Example #1
PDO_SQLSRV DSN examples
The following example shows how to connecto to a specified MS SQL Server database:
$c = new PDO("sqlsrv:Server=localhost;Database=testdb", "UserName", "Password");
The following example shows how to connect to a MS SQL Server database on a specified port:
$c = new PDO("sqlsrv:Server=localhost,1521;Database=testdb", "UserName", "Password");
The following example shows how to connecto to a SQL Azure database with server ID 12345abcde. Note that when you connect to SQL
Azure with PDO, your username will be UserName@12345abcde (UserName@ServerId).
$c = new PDO("sqlsrv:Server=12345abcde.database.windows.net;Database=testdb", "UserName@12345abcde", "Password");
PHP Documentation Group PDO_SQLSRV-DSN(3)