In my Summer Internship with ColoredCow I started my journey with WordPress. From my first theme(my first ever WP theme for submission as a task for ColoredCow Interview) to a client based theme I’ve learned a lot and still exploring the WordPress as well. In our first(or may be 2nd) code review “KD” added a comment to add “function_exist()” check before adding any of the function. I was like okay yeah we have to add a function_exist check before any of the function because if may be there is any function exist before this theme or plugin in the core or maybe it is derived in any of the plugin. …