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POPHP Autoloading
 

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    <p>I've been looking around quite a bit and can't find a concise answer to this question anywhere- perhaps those of you with more experience autoloading than myself could shed some light. Pretty simple question:</p> <p>I wrote a simple <code>autoloader</code>:</p> <pre><code>function __autoload($className){ $className = BASEDIR . "include/class/" . str_replace("_", "/", $className) . ".php"; require_once($className); } </code></pre> <p>Where <code>BASEDIR</code> is the base project directory. Works great including classes- go figure. However, when I go to include classes that extend other classes, it starts to break.</p> <p>Per the suggestions on this site, I'm using <code>PEAR</code> naming conventions for my classes. So my "Event" class (describing an actual event like a party) lives here:</p> <pre><code>include/class/Event/Event.php </code></pre> <p>The actual class name is "Event".</p> <p>When autoloading the class, I reference it like so:</p> <pre><code>new Event_Event(); </code></pre> <p>The autoloader turns that into: </p> <pre><code>"include/class/Event/Event.php"; </code></pre> <p>The problem comes when <code>Event</code> is extended by some other class utilizing this naming convention. I'm using, for example:</p> <pre><code>class EventInstructed extends Event_Event </code></pre> <p>The autoloader knows where to look, but since my Event class name is "Event" and not "Event_Event", it is trying to look for the wrong class and can't find it.</p> <p>The question therefore is, how do I utilize the pear naming conventions correctly, or should I do extra parsing in my autoloader to fix my issue? Explode the string on underscores, grab the class name and use that instead?</p> <p>Naming conventions are here: <a href="http://pear.php.net/manual/en/standards.naming.php" rel="nofollow">http://pear.php.net/manual/en/standards.naming.php</a></p> <p>Thanks!!</p> <p><strong>edit</strong></p> <p>My final solution was as mentioned in the accepted answer. Classes are in the hierarchy as such:</p> <pre><code>include/class/Event/Event.php include/class/Event/Lesson.php // &lt;-- extends Event </code></pre> <p>Inside the Event file:</p> <pre><code>abstract class Event_Event{ //Class code.... } </code></pre> <p>Inside the Lesson file:</p> <pre><code>class Event_Lesson extends Event_Event{ //Class code.... } </code></pre> <p>And finally, the __autoload function:</p> <pre><code>define("BASEDIR", __DIR__ . "/"); function __autoload($className){ $className = BASEDIR . "include/class/" . str_replace("_", "/", $className) . ".php"; echo $className . "&lt;br / &gt;"; require_once($className); } </code></pre>
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