pg_dbname()

(PHP 4, PHP 5, PHP 7)

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
?>

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