darrinb

Easily include raw markup languages (HTML, CSS, PHP, etc.) in posts using custom quicktags. No need to encode, the filter does it 
for you. Creates convenient “encode” buttons for post authors in the HTML editor.

WP Post Encode

Robert Seyfriedsberger

<a href="http://www.ioncube.com" rel="nofollow ugc">ionCube encoder</a> is an established industry standard solution for PHP encoding. In order to run encrypted files on your webserver, it has have ionCube encoders installed. This plugin checks if this is true and if not, you are given a guidance through the official loader wizard which determines what exactly has to be installed on your server on how this can be achieved (if you are not admin of your webserver, you are given instructions which you can easily forward to your admin).

ionCube tester plus

This plugin helps you to determine if the ionCube loaders are installed correctly on your web server.

WP Post Encode vs ionCube tester plus