It exports PHP code of Classes

Astah Professional, UML and Community 6.6.4 or later (Download: http://astah.net/download)

Download .jar file and save it under "plugins" folder in Astah Installation folder.
php-export-plugin.jar : Adds a menu to export PHP code
code-view-x.x.x.jar : Shows PHP code of selected model in the bottom view

How to export PHP code (php-export-x.x.x.jar)

1. Select [Tool] - [PHP] - [Export PHP]
   
2. A list of Classes appear, select Classes you want to export
   
3. Select where you want it to export and then click [OK]

After installing the code-view-x.x.x.jar, [Code View] is added in the pane below the Diagram Editor.
To open/hide the pane, go to [View] - [Show/Hide Extra View]