php-vn-lib/vn-autoload.php

<?php

$vnAutoloadReplace = function($matches) {
	$match = strtolower($matches[0]);
	
	if (strlen($match) == 1)
		return $match;
	if ($match{0} == '\\')
		return '/'. $match{1};

	return $match{0} .'-'. $match{1};
};

spl_autoload_register(function($className) {
	global $vnAutoloadReplace, $vnAutoloadMap;

	$classPath = preg_replace_callback('/.?[A-Z]/', $vnAutoloadReplace, $className);
	$classPath .= '.php';
	
	if (isset($vnAutoloadMap))
	foreach ($vnAutoloadMap as $prefix => $location) {
		$prefixLen = strlen($prefix);
	
		if (strncmp($classPath, $prefix, $prefixLen) == 0) {
			$classPath = "$location/". substr($classPath, $prefixLen);
			break;
		}
	}
	
	if ($classPath{0} != '/')
		$classPath = stream_resolve_include_path($classPath);
	
	if (file_exists($classPath))
		require_once $classPath;
});