pg_host

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

pg_host — 返回和某连接关联的主机名

说明

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

pg_host() 返回指定的 PostgreSQL connection 实例所连接到的主机名称。

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().

Warning

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

返回值

string, 包含 connection 的主机名，或错误时为空字符串。

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

Example #1 pg_host() 示例

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

if ($pgsql_conn) {
print "Successfully connected to: " . pg_host($pgsql_conn) . "<br/>\n";
} else {
print pg_last_error($pgsql_conn);
exit;
}
?>

参见