CodeIgniter 3 Dev MySQL server has gone away

[eluser]CroNiX[/eluser]
This is a mysql issue, not CI. Google the error message, "MySQL server has gone away", and you will see several things to check and alter, if necessary.
It can be anything from not having the packet size large enough for the amount of data you are returning to the value you have wait_timeout set to. Those are the usual causes.