Move Namespace Dialog
The dialog opens when you select a PHP namespace to be moved and chooseon the main menu or from the context menu of the selection.
PhpStorm assumes that the namespaces in your project are arranged in compliance with the PSR-0/PSR-4 standard and enforces you to retain the folder structure and the namespace hierarchy in accordance with this standard when moving namespaces.
When you specify a namespace to move a namespace to, PhpStorm automatically updates the Target Destination Directory field, which shows the path to the folder that corresponds to the namespace in question.
New Namespace Name
When the dialog opens, the field shows the fully qualified name of the selected namespace. Specify the new namespace name. Use only backslashes
Target Destination Directory
When the dialog opens, the field shows the path to the folder corresponding to the current namespace.
The path is displayed in the following format:
...\<project root>\<current namespace folder relative to the project root>
The path is updated automatically as you specify the new namespace name. However, if you are going to move a namespace to another parent namespace, PhpStorm will not suggest the proper folder unless you appoint a root folder for your namespace structure by marking the relevant folder as Sources on the Directories page of the Settings dialog (Control+Alt+S). For more information, refer to Directories.
Do one of the following:
Click this button to open the Move Files with Related Namespaces dialog and specify the classes and files to be moved to the new namespace and the new folder.
The upper pane of the dialog lists the destination namespaces and folders for classes and files related to the namespace. Each item in the list corresponds to a class/file. When you move the caret to an item, the bottom pane shows the contents of the file related with it.