Here I’m going to explain how to analyze the source code by using the “Yasca”
1. First of all you can checkout the Yasca from “https://svn.wso2.org/repos/wso2/people/prabath/yasca”
2. Check whether the php installed in your machine. if not you have to install it first
(In Linux you can do easily “sudo apt-get install php5”)
3. Go to the “yasca” directory and write the the following command
“./yasca $Source_Directory_path” for more command refer this
This is very useful for detecting security vulnerabilities and other issues in program source code.