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
pg_dbname
(PHP 4, PHP 5, PHP 7, PHP 8)
pg_dbname — Get the database name
Descrição
pg_dbname() returns the name of the database
that the given PostgreSQL connection instance.
Parâmetros
-
connection -
Uma instância de PgSql\Connection. Quando o parâmetro
connectionfornull, a conexão padrão será usada. A conexão padrão é a última conexão feita por pg_connect() ou pg_pconnect().AvisoA 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
?>
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User Contributed Notes 1 note
mark at redbrick dot dcu dot ie ¶
21 years ago
