Visual Studio Php Dollar Sign Double Click

Search for wordSeparator in preferences and replace this
  "editor.wordSeparators": "`~!@#%^&$*()-=+[{]}\\|;:'\",.<>/?"
    with this 
  "editor.wordSeparators": "`~!@#%^&*()-=+[{]}\\|;:'\",.<>/?"
Enjoy!
Matteoweb