How does PHP echo’s a “Hello World”? – Behind the scene

Have you ever wondered how PHP echo’s a “Hello World” for you on the browser? Even I didn’t until I read about the PHP internals and extensions. I thought may be a few out there will be interested in exploring the other side of PHP, so here we go. In my last post I discussed in brief “How your browser reaches to my server when you type http://abhinavsingh.com in address …