I'm working in PHP but didn't know about htaccess. And these days I know how much the value of htaccess. So, I decide to learn first htacces then step forward. But don't know from where I should start? Please provide your guidelines. I want to learn complete tips & tricks about htaccess. I know something but I want to learn more techniques. Like I want to create SEO friendly url and other category url's. Thanks in advance.