pg_options

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

pg_options — 获得和 connection 相关的选项

说明

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

pg_options() 将返回字符串，包含指定 PostgreSQL connection 实例的特定选项。

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 选项的 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 resource。
8.0.0	`connection` 现在可为 null。

示例

示例 #1 pg_options() 示例

<?php
   $pgsql_conn = pg_connect("dbname=mark host=localhost");
   echo pg_options($pgsql_conn);
?>

参见

pg_connect() - 打开 PostgreSQL 连接

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Robert Treat <xzilla at sourceforge> ¶

20 years ago

Apparently this function does not return the database name given in the connection string.  I tried this on apache 2.x/php4.3.x/pg7.4.x and apache 1.3.x/php5.x/pg8rc1 and saw this behavior on both setups.