pg_dbname

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

pg_dbnameGet the database name

Description

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

pg_dbname() returns the name of the database that the given PostgreSQL connection instance.

Parameters

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().

Warning

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

Return Values

A string containing the name of the database the connection is to.

Changelog

Version Description
8.1.0 The connection parameter expects an PgSql\Connection instance now; previously, a resource was expected.
8.0.0 connection is now nullable.

Examples

Example #1 pg_dbname() example

<?php
error_reporting
(E_ALL);

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

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User Contributed Notes 1 note

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mark at redbrick dot dcu dot ie
21 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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