E_WARNING: Error while sending STMT_PREPARE packet. PID=*

Question

As of 2019-01-30 14:52 UTC, you can still win the 500-point Bounty because none of the answers have helped!

My Laravel 5.7 website has been experiencing a few problems

Answer 1

I had an interesting observation on my CentOS machine, running PHP7.2x, Apache 2.4.6. After changing the host in my CodeIgniter config from '127.0.0.1' to 'localhost' the problem disappeared.

So change:

'hostname' => '127.0.0.1' to 'hostname' => 'localhost'

I reverted the configuration a couple of times to double check, but somehow this does the trick all the time...