[Twirrim]

> reaching to the point of saving php code into the mysql database and executing from there.

Wordpress loves to shove php objects into the database (been a good long while since I used it, don't remember the mechanism, it'd be the equivalent of `pickle` in python, only readable by php).

Not sure if they've improved it since I last dealt with it about 15 years ago, but at the time there was no way to have a full separated staging and production environment, lots of the data stored in the database that way had hardcoded domain names built into it. We needed to have a staging and production kind of set-up, so we ended up having to write a PHP script that would dump the staging database, fix every reference, and push it to production. Fun times.

[rovr138]

There's implode() and explode() as well as serialize() and unseralize()

No idea what's used in wordpress, but back in D6 and before, it was common to see it when it would store multiple values for an instance.