pg_version
(PHP 5, PHP 7, PHP 8)
pg_version — Returns an array with client, protocol and server version (when available)
说明
pg_version() returns an array with the client, protocol and server version. Protocol and server versions are only available if PHP was compiled with PostgreSQL 7.4 or later.
For more detailed server information, use pg_parameter_status().
参数
-
connection -
An PgSql\Connection instance. When
connectionisnull, the default connection is used. The default connection is the last connection made by pg_connect() or pg_pconnect().
返回值
Returns an array with client, protocol
and server keys and values (if available).
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 资源(resource)。
|
| 8.0.0 |
connection is now nullable.
|
范例
示例 #1 pg_version() example
<?php
$dbconn = pg_connect("host=localhost port=5432 dbname=mary")
or die("Could not connect");
$v = pg_version($dbconn);
echo $v['client'];
?>
以上例程会输出：
7.4
add a note
User Contributed Notes 2 notes
mgchristensen ¶
2 years ago
I note that the array element for "protocol" seemingly has no value, being reported as:
["protocol"]=> int(3)
whereas the array element for e.g. "server" is reported as (in my particular case):
["server"]=> string(5) "10.12"
A call to json_encode() however gives:
"protocol":3 and "server":"10.12"
live627 ¶
2 years ago
Complete output off this function for me is:
array(13) {
["client"]=>
string(5) "9.6.9"
["protocol"]=>
int(3)
["server"]=>
string(4) "12.1"
["server_encoding"]=>
string(4) "UTF8"
["client_encoding"]=>
string(4) "UTF8"
["is_superuser"]=>
string(2) "on"
["session_authorization"]=>
string(8) "postgres"
["DateStyle"]=>
string(8) "ISO, MDY"
["IntervalStyle"]=>
string(8) "postgres"
["TimeZone"]=>
string(10) "US/Arizona"
["integer_datetimes"]=>
string(2) "on"
["standard_conforming_strings"]=>
string(2) "on"
["application_name"]=>
string(0) ""
}