(PHP 5, PHP 7, PHP 8)
pg_version — Returns an array with client, protocol and server version (when available)
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().
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.
Returns an array with client, protocol
and server keys and values (if available).
| 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 is now nullable.
|
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'];
?>以上示例会输出：
7.4
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"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) ""
}