In order to set preferences (Editor, Debug, Formatter, etc.), for a specific project open Windows > Preferences > PHP > "preference".
Click the link: Configure Project Specific Settings.... at the top right of the dialog. The Project Specific Configuration dialog will appear.
Select the project and click OK; the Properties for <project> dialog will appear.
Click the select icon (
). The list
of available properties will appear.
Click and select the type of property to set. The corresponding dialog will appear.
Set the preferences as required and click OK.