autoload_psr0_lazy

autoload_psr0_lazy.php

<?php
/**
 * PSR-0 Autoloader
 * http://www.php-fig.org/psr/psr-0/
 * works PHP5 & PHP7
 * @sshilko
 */
function autoload_psr0($className)
{
    $oname = $className;
    $className = ltrim($className, '\\');
    $fileName  = '';
    if ($lastNsPos = strrpos($className, '\\')) {
        $namespace = substr($className, 0, $lastNsPos);
        $className = substr($className, $lastNsPos + 1);
        $fileName  = str_replace('\\', DIRECTORY_SEPARATOR, $namespace) . DIRECTORY_SEPARATOR;
    }
    $fileName .= str_replace('_', DIRECTORY_SEPARATOR, $className) . '.php';
    $filePath  = stream_resolve_include_path($fileName);
    if ($filePath) {
        /**
         * put your mostly used files high in include_path
         * some frequent packages are directly mapped
         * to prevent full composer autoloaded
         */
        return include $filePath;
    } else {
        /**
         * Only need autoloader once
         * check correct paths
         */
        if (!isset($GLOBALS['composer_autoloaded'])) {
            $GLOBALS['composer_autoloaded'] = true;
            $loader = require __DIR__ . '/../composer/autoload.php';
            $loader->loadClass($oname);
        }
        return false;
    }
}
//include __DIR__ . '/../composer/autoload.php';
spl_autoload_register('autoload_psr0');