Making a php library, how to make it independent?
<p>Hi I'm developing a library for guitar chords. In some files on the library I have something like this:</p>

<pre><code>require_once "lib/GuitarChord.php";
require_once "lib/Chord.php";
require_once "lib/Key.php";
require_once "lib/Tuning.php";
</code></pre>

<p>How can I make this library so it doesn't need to know <strong>where</strong> the other library files are?</p>

<p>This way a person could have the library files in any directory?</p>

<p>Edit: Removed second question.</p>
