Hi,
I am currently looking for work and I would like to do this project for you, and help you figure out why the php code is not creating the folder as it should. I think I might know what the problem is. I can debug the code and figure out the cause, and then provide a fix.
I have several years experience working with the full LAMP stack (Linux, Apache, MySQL, and PHP). I also have experience with content management systems such as Drupal and Wordpress. I also know HTML/CSS, JavaScript, and jQuery. I've been working at least 5 years as an Independent Contractor with a company called Boomdizzle (a social music hip hop website) co-founded by LL Cool J. I maintain their websites and servers, I set up the current design and CMS that they are using. I've written custom modules, and I have lots of experience with PHP and Linux. I do not have experience with WHMCS (however I did google it), but I have used various PHP frameworks and content management systems before, so I do not think that would be a problem.
My Resume is attached to my profile as well as reviews from past clients. If you want me to provide any additional information or examples of my past work, please let me know. Thank you for taking the time to consider my bid and I look forward to working with you on this project.