Extract Field Dialog
In this field, specify the name of the new field.
In this area select where the new field will be initialized in.
When you work with PHPUnit tests, PhpStorm also lets you initialize the field in the
In this area, specify the visibility scope for the new field. The available options are:
Replace all occurrences
Select this checkbox to have PhpStorm automatically replace all the occurrences of the selected expression.
The checkbox is enabled only if the selected expression is used more than once in the class. All the found occurrences of the expression are highlighted.