A Laravel Valet driver for WordPress installations in the ./wordpress/ folder. Save in ~/.valet/Drivers/ComposerWordPressValetDriver.php

ComposerWordPressValetDriver.php

<?php

class ComposerWordPressValetDriver 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, $uri)
    {
        return file_exists($sitePath.'/wordpress/wp-config.php') || file_exists($sitePath.'/wordpress/wp-config-sample.php');
    }

    /**
     * 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, $uri)
    {
        if ($this->isActualFile($staticFilePath = $sitePath.'/wordpress'.$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['PHP_SELF']    = $uri;
        $_SERVER['SERVER_ADDR'] = '127.0.0.1';
        $_SERVER['SERVER_NAME'] = $_SERVER['HTTP_HOST'];

        return parent::frontControllerPath(
            $sitePath . '/wordpress', $siteName, $this->forceTrailingSlash($uri)
        );
    }

    /**
     * Redirect to uri with trailing slash.
     *
     * @param  string $uri
     * @return string
     */
    private function forceTrailingSlash($uri)
    {
        if (substr($uri, -1 * strlen('/wp-admin')) == '/wp-admin') {
            header('Location: '.$uri.'/'); die;
        }

        return $uri;
    }
}