PDO :: getAttribute
PDO :: getAttribute - Retrieve a database connection attribute (PHP 5> = 5.1.0, PECL pdo> = 0.1.0)
Explanation
grammar
mixed PDO::getAttribute ( int $attribute )
This function (method) Returns the value of a property database connection. Retrieve PDOStatement attributes, refer to PDOStatement :: getAttribute ().
Note that some database / driver may not support all of the database connection properties.
Parameter Description:
attribute:
PDO :: ATTR_ * constants a. The following are applied to the database connection constants:
- PDO :: ATTR_AUTOCOMMIT
- PDO :: ATTR_CASE
- PDO :: ATTR_CLIENT_VERSION
- PDO :: ATTR_CONNECTION_STATUS
- PDO :: ATTR_DRIVER_NAME
- PDO :: ATTR_ERRMODE
- PDO :: ATTR_ORACLE_NULLS
- PDO :: ATTR_PERSISTENT
- PDO :: ATTR_PREFETCH
- PDO :: ATTR_SERVER_INFO
- PDO :: ATTR_SERVER_VERSION
- PDO :: ATTR_TIMEOUT
return value
PDO attribute value requested successful call is returned. Unsuccessful returns null.
Examples
Retrieve a database connection attribute
<?php $conn = new PDO('odbc:sample', 'db2inst1', 'ibmdb2'); $attributes = array( "AUTOCOMMIT", "ERRMODE", "CASE", "CLIENT_VERSION", "CONNECTION_STATUS", "ORACLE_NULLS", "PERSISTENT", "PREFETCH", "SERVER_INFO", "SERVER_VERSION", "TIMEOUT" ); foreach ($attributes as $val) { echo "PDO::ATTR_$val: "; echo $conn->getAttribute(constant("PDO::ATTR_$val")) . "\n"; } ?>