As simple as 4 rules of code you can do create a mySQL statment for database interactions.

By default users cannot register unless you enable them to. This is a Joomla setting.

If for some reason in your browser the virtuemart cart (adding articles to your cart) does not work properly, in some browsers, troubleshooting can be hard. 

It happens that registered users get deactivated for what seems to be no reason. Well that is not the case. the following actions trigger a deactivation:

• Super users de-activate the user in question
• Plugins like admin tools can deactivate the user automatically
• ...

When writing a Joomla module or component, you can access the database with the JDatabase option.

Below you can find a script that loads the joomla 4 (only 4) framework on an external PHP page

Admintools has a very powerful firewall function that can detect abnormal behavior on your website. Sometimes you yourself can become a victim of this. Doctor Joomla has the cure for you!