Parameter Stack View [PHP Debug Perspective]
The following information can be gathered from the Parameter Stack view:
The Main Calling Line of Code - The line number in which the calling statement occurred (in parentheses).
Parameter Values - Shows the parameter values that were passed in the function call.
The Parameter Stack View [PHP Debug Perspective] is displayed by default as part of the Debug Perspective. To manually open the view, go to Window | Show View | Other | PHP Tools | Parameter Stack.