PHP 手册
后退前进


PDO::getAttribute

(no version information, might be only in CVS)

PDO::getAttribute --  Retrieve a database connection attribute

说明

mixed PDO::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.

参数

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

返回值

A successful call returns the value of the requested PDO attribute. An unsuccessful call returns null.

范例

例子 1. Retrieving database connection attributes

<?php
$conn = new PDO('odbc:sample', 'db2inst1', 'ibmdb2');

print "\nPDO_ATTR_AUTOCOMMIT: ";
print $conn->getAttribute(PDO_ATTR_AUTOCOMMIT);

print "\nPDO_ATTR_ERRMODE: ";
print $conn->getAttribute(PDO_ATTR_ERRMODE);

print "\nPDO_ATTR_CASE: ";
print $conn->getAttribute(PDO_ATTR_CASE);

print "\nPDO_ATTR_CLIENT_VERSION: ";
print $conn->getAttribute(PDO_ATTR_CLIENT_VERSION);

print "\nPDO_ATTR_CONNECTION_STATUS: ";
print $conn->getAttribute(PDO_ATTR_CONNECTION_STATUS);

print "\nPDO_ATTR_ORACLE_NULLS: ";
print $conn->getAttribute(PDO_ATTR_ORACLE_NULLS);

print "\nPDO_ATTR_PERSISTENT: ";
print $conn->getAttribute(PDO_ATTR_PERSISTENT);

print "\nPDO_ATTR_PREFETCH: ";
print $conn->getAttribute(PDO_ATTR_PREFETCH);

print "\nPDO_ATTR_SERVER_INFO: ";
print $conn->getAttribute(PDO_ATTR_SERVER_INFO);

print "\nPDO_ATTR_SERVER_VERSION: ";
print $conn->getAttribute(PDO_ATTR_SERVER_VERSION);

print "\nPDO_ATTR_TIMEOUT: ";
print $conn->getAttribute(PDO_ATTR_TIMEOUT);
?>

参见

PDO::setAttribute()
PDOStatement::getAttribute()
PDOStatement::setAttribute()



后退起点前进
PDO::exec上一级PDO::lastInsertId