i am a begginer to html and knows very little about html, php, javascript and other tings like it. i want to know if there is a an emulator for a server. like html files are opened in a same way as they open frm a server but not the php files. how cud i do tat. plz help

If you want to have a virtual environment, why don't you use VMWARE or PC virtual or some sort of OS emulation software and test it in that environment?