Desktop Application and Mobile Application

Dear PHP Support Group, *Greetings of the day,* First of all I am thankful to you to provide us PHP. I am a professional website developer and a big fan of PHP. I am using PHP from last 3 years for website and web applications. But recently I found that php can also be used to make desktop based and mobile based applications. *Can you please let me know how to make desktop applications and mobile applications using php?* *I have planned to learn Java / vb.net <http://vb.net> for making the desktop application & android to make mobile application that will be very costly for me to learn and it needs time to learn. After still not guaranteed that I will learn them completely and able to make applications.* I request you to please let me know the way how can I make desktop applications *(softwares)* and mobile applications *(for android / ios)* using the power of PHP. *So I can make the softwares for me and my clients without learning any other language.* Looking forward for the early and positive response. With Regards, Jaidev Bhati *(A Big PHP Fan)*