Shift + Esc to toggle hide/restore focus.
By default, the terminal opens at the bottom. You can move it to the top of the IDE: Right-click the or the terminal's header bar . phpstorm terminal shortcut top
The shortcuts like Ctrl+R only work when the terminal pane is active . If you press Ctrl+R and nothing happens, you are still in the editor. Tap Alt+F12 first to focus the terminal. Shift + Esc to toggle hide/restore focus
PHPStorm lets you override or add shortcuts via . phpstorm terminal shortcut top
Here are some content about PhpStorm terminal shortcuts: