Strange entry in server log

[NigelG]

Server shows the following entry, there is no function name against the line. Below is the message, anyone know what this means please.

Time, Function, Message
09:12:20.142, , ??: SL: connected psdc:0/PHPExtension_0 at [psdc]/PHPExtension_0

 

[archie]

This essage shows, that your web interface to the system has successfully connected to PBX to receive current status and notifications. It's normal behaviour.