How to compile php code after installing appserv

How to compile php code after appserv installation recently I want to learn php and want to build a website. so I chose the appserv software to build the lamp environment. However, after the installation is complete, there is always an error in opening the php file, if the source code is displayed, the source code is displayed... the PHP file cannot be opened by double-clicking it. you need to put the file under the www directory and enter localhost/***** in the browser /****. php can be opened correctly ....

You can use the editor to compile the php code. after writing the code, put it in the www directory and use the above method to access it.