require( dirname( __FILE__ ) . '/red/wp-blog-header.php' );

/var/www/html
          |
          --------project01
                     |
                     -------- index.php /* modified as described above */
                     |
                     -------- red
                               |
                               -------- wp-config.php
                               |
                               -------- wp-content
                               |
                               -------- /* Other WordPress files and directories */

/var/www/html
          |
          --------project01
                     |
                     -------- index.php /* modified as described above */
                     |
                     -------- red
                               |
                               -------- wp-config.php
                               |
                               -------- green /* this is a renamed wp-content directory */
                               |
                               -------- /* Other WordPress files and directories */

define('WP_CONTENT_FOLDERNAME', 'green');
define('WP_CONTENT_DIR', ABSPATH . WP_CONTENT_FOLDERNAME);

define('WP_SITEURL', 'http://' . $_SERVER['HTTP_HOST'] . '/');
define('WP_CONTENT_URL', WP_SITEURL . 'project01' . '/' . 'red' . '/' . WP_CONTENT_FOLDERNAME);

require_once(ABSPATH . 'wp-settings.php');