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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

<?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";
}
?>