pg_dbname

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

pg_dbname — 获得数据库名

说明

pg_dbname ( resource $connection ) : string

pg_dbname() 返回给定 PostgreSQL connection 资源的数据库名称。如果 connection 不是有效的 PostgreSQL 连接资源则返回 false。

Example #1 pg_dbname() 例子

<?php
    error_reporting(E_ALL);

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

User Contributed Notes

mark at redbrick dot dcu dot ie 24-Mar-2003 12:37
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