PHP 8.3.4 Released!

pg_dbname

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

pg_dbnameGet the database name

Descrição

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

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

Parâmetros

connection

Uma instância de PgSql\Connection. Quando o parâmetro connection for null, a conexão padrão será usada. A conexão padrão é a última conexão feita por pg_connect() ou pg_pconnect().

Aviso

A partir do PHP 8.1.0, usar a conexão padrão tornou-se defasado.

Valor Retornado

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

Registro de Alterações

Versão Descrição
8.1.0 O parâmetro connection agora espera uma instância de PgSql\Connection; anteriormente, um resource era esperado.
8.0.0 connection is now nullable.

Exemplos

Exemplo #1 pg_dbname() example

<?php
error_reporting
(E_ALL);

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

add a note

User Contributed Notes 1 note

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mark at redbrick dot dcu dot ie
20 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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