array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'zh', ), 'this' => array ( 0 => 'function.pg-port.php', 1 => 'pg_port', ), 'up' => array ( 0 => 'ref.pgsql.php', 1 => 'PostgreSQL 函数', ), 'prev' => array ( 0 => 'function.pg-ping.php', 1 => 'pg_ping', ), 'next' => array ( 0 => 'function.pg-prepare.php', 1 => 'pg_prepare', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'zh', 'path' => 'reference/pgsql/functions/pg-port.xml', ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); ?>
(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。
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().
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;
}
?>