Refactor | Extract Constant
|Name||In this text box, specify the name of the new constant.|
|Replace all occurrences||Select this check box to have PhpStorm automatically replace all the occurrences of the selected expression (if the selected expression is found more than once in the method).|
In this area, choose the method to define the PHP constant.
The area is available only when the refactoring is invoked outside a class definition because the choice itself is relevant only in this context:
extracted class constants are defined through the const keyword only.