basic autoload for php 5.2

autoload.php

<?php

/**
 * A basic autoload implementation that should be compatible with PHP 5.2.
 *
 * @author pmg
 */

global $autoLoadFolders;

$srcPath = realpath(dirname(__FILE__)) . DIRECTORY_SEPARATOR . 'src';
$scannedItems = scandir($srcPath);

foreach ($scannedItems as $item) {
    if ($item === '.' || $item === '..') {
        continue;
    }
    if (is_dir($folder = $srcPath . DIRECTORY_SEPARATOR . $item)) {
        $autoLoadFolders[] = $folder;
    }
}

function legacyAutoload($className)
{
    global $autoLoadFolders;

    foreach ($autoLoadFolders as $folder) {
        $classPath = $folder. DIRECTORY_SEPARATOR . $className . '.php';
        if (file_exists($classPath)) {
            require_once $classPath;
            return true;
        }
    }
    return false;
}

spl_autoload_register('legacyAutoload', true/*, true*/);