PHP: Step to Quality Code and ZendStudio (Code Assist)
One of the easiest ways to determine the quality of an application code is to look at IDE hints (for example, ZendStudio). At first glance, a simple technique carries a well-defined and rational moments.
Code transparency
following naming standards
proper use of visibility modifiers
use of OOP
lack of "magic" in the code
documenting methods and functions
Looking at the IDE tips, you can make a very reasonable conclusion about the quality of the code.