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PDO::getAttribute

(PHP 5 >= 5.1.0, PHP 7, PHP 8, PECL pdo >= 0.2.0)

PDO::getAttribute Devuelve un atributo de la conexión a la base de datos

Descripción

public PDO::getAttribute(int $attribute): mixed

Esta función devuelve el valor de un atributo de la conexión a la base de datos. Para recuperar atributos de objetos PDOStatement, véase PDOStatement::getAttribute().

Nótese que algunas combinaciones de bases de datos/driver pueden no soportar todos los atributos de conexión a la base de datos.

Valores devueltos

Una llamada con éxito devuelve el valor del atributo PDO solicitado. Una llamada fallida devuelve null.

Ejemplos

Ejemplo #1 Obtiene los atributos de la conexión a la base de datos

<?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";
}
?>

Ver también

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User Contributed Notes 2 notes

up
6
Phil Hilton
5 years ago
Better example that handles unsupported attributes gracefully:

<?php

$conn
= new PDO( 'odbc:sample', 'db2inst1', 'ibmdb2' );
$conn->setAttribute( PDO::ATTR_ERRMODE, PDO::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
$conn->getAttribute( constant( "PDO::ATTR_$val" ) ) . "\n";
} catch (
PDOException $e ) {
echo
$e->getMessage() . "\n";
}
}

?>
up
0
Robert Parham
8 years ago
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.
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