(PHP 4, PHP 5, PHP 7, PHP 8)
pg_port — 返回 connection 相关的端口号
pg_port() 返回连接指定 PostgreSQL connection 实例的端口号。
connectionAn 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().
As of PHP 8.1.0, using the default connection is deprecated.
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。
| 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 #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;
}
?>