PDO->getAttribute()

Retrieve a database connection attribute ()

PDO {
  mixed getAttribute(int attribute);
}

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 constants 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 1761. Retrieving database connection attributes

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<?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";

}
?>