PDO::getAttribute
(PHP 5 >= 5.1.0, PHP 7, PHP 8, PECL pdo >= 0.2.0)
PDO::getAttribute — Retrieve a database connection attribute
Description
This function returns the value of a database connection attribute. To retrieve PDOStatement attributes, refer to PDOStatement::getAttribute().
Note that some database/driver combinations may not support all of the database connection attributes.
Parameters
-
attribute
-
One of the
PDO::ATTR_*
constants. The generic attributes that apply to database connections are as follows: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 Values
A successful call returns the value of the requested PDO attribute.
An unsuccessful call returns null
.
Examples
Example #1 Retrieving database connection attributes
<?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";
}
?>
See Also
- PDO::setAttribute() - Set an attribute
- PDOStatement::getAttribute() - Retrieve a statement attribute
- PDOStatement::setAttribute() - Set a statement attribute