You can setup deployment to local folder and this will be simply a matter of saving the file.
Steps:
1) In PhpStorm open Tools -> Deployment -> Tick Automatic Upload (always). This way your file will be copied to desired directory every time you save the file.
2) Tools -> Deployment -> Configuration
3) in the window opened click + button and, enter any name, f.e. 'Test Folder' and in the dropdown Type select Local or mounted folder
4) After that click select folder C:\wamp in the Folder field on the right side and enter server address.
5) on the tab Mappings in the right section enter Deployment path on server as \ or select whatever path you want relative to c:\wamp. Your edited file will be copied there upon save.
6) On the left side tick button Use Default (4th next to + button)
7) Click Ok. That's it.
Now, you don't have to copy file manually each time. Just edit, save and it will be copied automatically. If you want to copy it manually with keyboard shortcut - just set shortcut for action Upload to Default Server (I personally set it to Ctrl+Alt+U) and untick Automatic Upload.