This Bugzilla instance is a read-only archive of historic NetBeans bug reports. To report a bug in NetBeans please follow the project's instructions for reporting issues.
The PHP editor doesn't highlight usage of undefined functions and parameters. Because php is have the possibility to add parameters on the fly this should just be a warning. Also functions can be dynamic via the __call function, but on classes without __call a warning can be displayed. Related to this topic http://forums.netbeans.org/topic41067.html
Maybe some hint could be added.
this would be very useful; you can forget to create a method and find out only 3 months later, in production, when your code crashes at runtime; this makes php a terrible language compared to java and c# since php introduced "declare(strict_types=1)" and made it possible to remove the silent type conversion, which is another nightmare in php, this is the biggest source of bugs