(No version information available, might be only in CVS)
ifx_pconnect — Open persistent Informix connection
([ string $database
[, string $userid
[, string $password
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 (ifx_close() will not
close links established by ifx_pconnect()).
This type of links is therefore called 'persistent'.
All of the arguments are optional, and if they're missing, defaults are
taken from values supplied in php.ini (ifx.default_host for the host
(Informix libraries will use INFORMIXSERVER environment
value if not defined), ifx.default_user for user, ifx.default_password for
the password (none if not defined).
The database name, as a string.
The username, as a string.
The password, as a string.
Returns: valid Informix persistent link identifier on success, or FALSE