PHP 8.5.0 Alpha 1 available for testing

pg_dbname

(PHP 4, PHP 5, PHP 7, PHP 8)

pg_dbname Devuelve el nombre de la base de datos PostgreSQL

Descripción

pg_dbname(?PgSql\Connection $connection = null): string

pg_dbname() devuelve el nombre de la base de datos PostgreSQL asociada a la conexión connection.

Parámetros

connection

An PgSql\Connection instance. When connection is null, the default connection is used. The default connection is the last connection made by pg_connect() or pg_pconnect().

Advertencia

As of PHP 8.1.0, using the default connection is deprecated.

Valores devueltos

Una cadena de tipo string que contiene el nombre de la base de datos asociada a la conexión connection.

Historial de cambios

Versión Descripción
8.1.0 The connection parameter expects an PgSql\Connection instance now; previously, a recurso was expected.
8.0.0 connection ahora es nullable.

Ejemplos

Ejemplo #1 Ejemplo con pg_dbname()

<?php
error_reporting
(E_ALL);

pg_connect ("host=localhost port=5432 dbname=marie");
echo
pg_dbname(); // muestra marie
?>

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User Contributed Notes 1 note

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mark at redbrick dot dcu dot ie
22 years ago
This function is as simple as it sounds, it returns the name of the database your are currently connected to on the handle retrieved from a pg_connect() call.

<?php
$pgsql_conn
= pg_connect("dbname=mark host=localhost");

if (
$pgsql_conn) {
print
"Successfully connected to database: " . pg_dbname($pgsql_conn) .
" on " . pg_host($pgsql_conn) . "<br/>\n";
} else {
print
pg_last_error($pgsql_conn);
exit;
}
?>

[mark@prodigy][*][~/public_html/php]>>>php pg_dbname.php
Content-type: text/html
X-Powered-By: PHP/4.3.1

Successfully connected to database: mark on localhost<br/>

Again this function is much more useful when you are changing which database you are connected to in your program.

Regards, --mark
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