Просмотр файла vendor/nikic/fast-route/src/bootstrap.php
<?php namespace FastRoute; require __DIR__ . '/functions.php'; spl_autoload_register(function ($class) { if (strpos($class, 'FastRoute\\') === 0) { $name = substr($class, strlen('FastRoute')); require __DIR__ . strtr($name, '\\', DIRECTORY_SEPARATOR) . '.php'; } });