This is a nifty little plugin I wrote so that my customers can log in via WordPress and view a services page as well as a billing page. This plugin connects to the InvoiceNinja database and gets a link to the billing portal that you can add to a page via shortcodes.
To use the services function, create a directory readable by PHP and name each text file with the wordpress users’ ID number. Once that is done you may use HTML in each file. This will change in the future as the plugins development advances.
Installation is simple: Simply drop the PHP file “servicesandbilling.php” into your wp-content/plugins folder, go to the plugins page in the WordPress Dashboard and activate the plugin “Mr. Services and Billing”.
Once activated, use the shortcodes [ zb_services ] and [ zb_billing ] on their respective pages.