pg_dbname

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

pg_dbname获取数据库名称

说明

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

pg_dbname() 返回指定 PostgreSQL connection 实例的数据库名称。

参数

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().

警告

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

返回值

包含 connection 到的数据库名称的 string

更新日志

版本 说明
8.1.0 现在 connection 参数接受 PgSql\Connection 实例,之前接受 资源(resource)
8.0.0 connection 可以为 null。

范例

示例 #1 pg_dbname() 示例

<?php
error_reporting
(E_ALL);

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

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