title: What is the difference between the 'www' folder and 'htdocs' folder?
body: <p>After I installed Apache on my web server there was created a folder called <em>www</em>. Whatever files like HTML and PHP files I put there it will be on my website.</p>
  <p>However, I followed one of the tutorial on YouTube and also even my own <a href="https://en.wikipedia.org/wiki/XAMPP" rel="noreferrer">XAMPP</a> folder has a <em>htdocs</em> folder which is the same as the <em>www</em> folder. When I put a file inside I can see it if I type its name after localhost. Is there any difference between these two? How have we defined these directories as a container of our files?</p>