Laravel.io
<?php

class BitrixValetDriver extends BasicValetDriver
{
    /**
     * Determine if the driver serves the request.
     *
     * @param  string  $sitePath
     * @param  string  $siteName
     * @param  string  $uri
     * @return bool
     */
    public function serves($sitePath, $siteName, $uri)
    {
        return is_dir($sitePath.'/bitrix') && !file_exists($sitePath.'/'.$uri);
    }

    /**
     * Determine if the incoming request is for a static file.
     *
     * @param  string  $sitePath
     * @param  string  $siteName
     * @param  string  $uri
     * @return string|false
     */
    public function isStaticFile($sitePath, $siteName, $uri)
    {
        if (file_exists($staticFilePath = $sitePath.'/'.$uri)) {
            return $staticFilePath;
        } 

        return false;
    }

    /**
     * Get the fully resolved path to the application's front controller.
     *
     * @param  string  $sitePath
     * @param  string  $siteName
     * @param  string  $uri
     * @return string
     */
    public function frontControllerPath($sitePath, $siteName, $uri)
    {
        $_SERVER["DOCUMENT_ROOT"] = $sitePath;

        $_SERVER['SERVER_NAME'] = $_SERVER['HTTP_HOST'];

        return $sitePath.'/bitrix/urlrewrite.php';
    }
}

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