This article is old. Please use playSMS version 1.4.3 instead. Previous version of playSMS contains security vulnerabilities and have been fixed in 1.4.3.
Same method described in this article can still be used to install playSMS 1.4.3, you just need to change 1.4.2 to 1.4.3.
This howto will show you how to install playSMS 1.4.2 on Ubuntu 18.04, the latest version as of today. By using Ubuntu 18.04 as base distribution you can test whether or not playSMS 1.4.2 work properly with PHP 7.2 and MySQL 5.7.
Login to your DigitalOcean web panel. If you haven’t got one then register for free here: https://m.do.co/c/aeec1cef58b6
Shameless plug: Notice the referral link there ? Yes, please click it so that you can earn USD 10 credit on DigitalOcean (for testing this howto maybe?) and when you actually use and spent money on DigitalOcean then I’ll also get something from them too :)
Q: Can I install on different server other than DigitalOcean ?
A: Yes of course, you need Internet and preferably CLI root access