PHPCon Poland 2024

pg_port

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

pg_port 返回 connection 相关的端口号

说明

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

pg_port() 返回连接指定 PostgreSQL connection 实例的端口号。

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

string,包含 connection 连接到的数据库服务器的端口号,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

示例 #1 pg_port() 示例

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

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

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