f have a website use pconnect function(by another programer.)?
I can use new (non pconnect)connect function() with same user login name by pconnect.


please explain me. thank you.

pconnect allows for pooling / sharing of connections, through a Persistent Connection
it can reduces the overhead in running a script, as the script doesn't have to instantiate the connection to the DB
pconnect should be used sparingly, but if your script is connecting to the same database host using the same userid and password. if you know

if pconnect cannot find an existing connection it will create one in the same way as connect.

see PHP: Persistent Database Connections - Manual