How to send sms using PlaySMS through a php script

I am trying to use a php script to send sms. The sms gateway is Kannel and on top of which they are using PlaySMS Web-based Mobile Portal System for management.I know how i can send sms by directly communicating with Kannel HTTP sendsms interface using cURL to execute something like

(http://127.0.0.1:10200/cgi-bin/sendsms?user=myuser&pass=xyz&text=Hello&to=123456789&from=test)

but i want to use PlaySMS instead of directly communicating with the Kannel gateway.Is there some kind of PlaySMS HTTP interface used for sending sms same as that for Kannel's?. Please help me here i have no idea what to do and can't find anything on the internet.I want to use php code to achieve this funtionality.