To copy multiple, non-adjacent words in PhpStorm, option click at the start of each word, then hold option and shift and hit the right-arrow key and each word will become highlighted. Ctrl + c to copy and then move to where you want to place the copied words and paste (Ctrl + v). You can also add extra text before or after the copied words, and the extra text will occur in the same place on each line from which the words were copied.
Just discovered(!) that moving the cursor to the end of a line and automatically adding the semicolon can be accomplished with the following combination of keys: Cmd + Shift + Enter