PDO::getAttribute

(PHP 5 >= 5.1.0, PECL pdo:0.2-1.0.3)

PDO::getAttribute — Retrieve a database connection attribute

Описание

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.

Список параметров

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

Возвращаемые значения

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

Примеры

Пример #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";
}
?>

Коментарии

Автор:
Oracle does not have the following attributes:

PDO::ATTR_CONNECTION_STATUS: SQLSTATE[IM001]: Driver does not support this function: driver does not support that attribute
PDO::ATTR_PREFETCH: SQLSTATE[IM001]: Driver does not support this function: driver does not support that attribute
PDO::ATTR_TIMEOUT: SQLSTATE[IM001]: Driver does not support this function: driver does not support that attribute

The rest work fine.
2015-09-02 21:45:15
http://php5.kiev.ua/manual/ru/pdo.getattribute.html
Автор:
Better example that handles unsupported attributes gracefully:

<?php

$conn 
= new PDO'odbc:sample''db2inst1''ibmdb2' );
$conn->setAttributePDO::ATTR_ERRMODEPDO::ERRMODE_EXCEPTION );

$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: ";
    try {
        echo 
$conn->getAttributeconstant"PDO::ATTR_$val) ) . "\n";
    } catch ( 
PDOException $e ) {
        echo 
$e->getMessage() . "\n";
    }
}

?>
2018-06-15 16:54:40
http://php5.kiev.ua/manual/ru/pdo.getattribute.html

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