Create a simple Wordpress plugin

We need a Wordpress plugin that will in a nutshell receive html elements to display on URL’s that are part of the Wordpress system. The plugin has the following requirements: • During the installation of the plugin a PHP file with relevant code will be created somewhere in the Wordpress installation. Each plugin installation is unique and comes bundled with a private key as well as a directory location for the creation of the PHP file. • The php program will receive an encrypted methods and data via http post which will be decrypted and executed. o A common method would be to add a new html element to a certain URL of the Wordpress site. This will then store the element in the wordpress database for later retrieval. o Other commands will include. Clearing the database table of html elements, retrieving current elements assigned to a certain URL. Running php eval statements and returning the results for debugging. Removing only certain elements. Adding, deleting batches. Storing the location of the php file. • The wordpress user will then be able to make use of shortcodes and/or widgets to to add “spaceholders” to certain wordpress pages/posts or to the template directly. Each page can have a maximum of 3 spaceholder sections numbered from 1 to 3. These spaceholders will then get filled by our html elements contained in the database. The code behind each shortcode section will then be able to go to the database table of the plugin and check if there are html elements for it to display. If anything is found the html element will fill the spaceholder and be displayed as part of the page. • The wordpress admin will also be able to configure the location/name of the php file. Once the location is changed the old file needs to be moved to the new location and renamed if required. This is a relatively simple project and is priced accordingly. The budget for this project is <$100. Please don't bid if your bid is more than this. I will delete your bid and report it as spam as it means that you haven't read my requirements.