PhpStorm keeps a list of the recent entries stored in the clipboard. Press Cmd+Shift+V to view the list of clipboard entries.
The clipboard history list can also be opened from the menus: Edit | Paste from History.
Adding something to the clipboard will add it to the top of the list. Pasting something from the clipboard history will also push it to the top of the list.
Entries can be removed from the history list by selecting the entry and pressing the Delete key.
Press Ctrl+Shift+V to view the clipboard history list.