说明
resource
fbsql_pconnect ( [string hostname [, string username [, string password]]] )
Returns: A positive FrontBase persistent link identifier on
success, or FALSE on error.
fbsql_pconnect() establishes a connection
to a FrontBase server. The following defaults are assumed for
missing optional parameters: host =
'localhost', username = "_SYSTEM"
and password = empty password.
To set Frontbase server port number, use
fbsql_select_db().
fbsql_pconnect() acts very much like
fbsql_connect() with two major differences.
First, when connecting, the function would first try to find a
(persistent) link that's already open with the same host,
username and password. If one is found, an identifier for it
will be returned instead of opening a new connection.
Second, the connection to the SQL server will not be closed when
the execution of the script ends. Instead, the link will remain
open for future use.
This type of links is therefore called 'persistent'.
fbsql_password