How to tell php to create a directory and another directory inside that one
<p>How do I tell php to create a directory and then another directory inside that directory?</p>

<p>I'm using mkdir here. I have a folder called images. I need to create a folder inside images called 'user', then a folder under user called '15'. I can create the folder called user in one go. How can I do both together?</p>
