Introducing, playSMS PHP class for accessing playSMS webservices. This class is based on the Webservices API document shared on playSMS Github repository.
Get it from here: https://github.com/antonraharja/playsms-webservices.
If you use composer, which is recommended, the package listed as playsms/webservices, here: https://packagist.org/packages/playsms/webservices.
Usage examples can be found in tests folder.
And last, please visit playSMS User Group forum to discuss this, here is the address: https://bit.ly/playsmsusergroup
Enjoy.