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.
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.
Returns an array with client, protocol and server keys and values (if available).
|8.1.0||The connection parameter expects an PgSql\Connection instance now; previously, a resource was expected.|
|8.0.0||connection is now nullable.|