This is a simple script created out of frustration at being unable to access the Mautic dashboard in an installation long since forgotten.
All I had was access to the database, and needed to modify some of the email content located within. As they were stored in serialised strings, it was something of a process to manually retrieve, unserialise, modify, reserialise, store. As any programmer would understand, an better process was required.
Excuse the horrible aesthetics, this was created rather quickly to get the job done — function over form.
Only works with MySQL.
config.php and modify it for your details.
http://your-site/modify-mautic/ in your browser. The rest is self-explanatory.
This will make irreversible changes to your database. I would not recommend using it on a production database... or anywhere else.