Headers and client library minor version mismatch.

[Web Tech Aruba]

Greetings to everyone, I just update WordPress to the latest version 4.5 and getting issues on my every website as mysqli_real_connect(): Headers and client library minor version mismatch.

I have dedicated managed linux server with cpanel and whm access, I have root access to server.
CENTOS 6.7 x86_64
WHM 54.0 (build 21)
MySQL 5.6
PHP Version 5.5.32

Please help me out. Thank you.

 

[dalem]

just guessing but i think you have updated MySQL but did not recompile php
run easyapache to see if will clear the error

 

[Web Tech Aruba]

Hey Delem, thank you for reply, I didn't update MySQL, everything was working perfectly fine with my all WordPress websites, I just updated WordPress to 4.5 and start getting this issue. do I still need to run easyapache? help me out mate.

MySQL Version: 5.6.29
PHP Version: 5.5.32

Thank you.

 

[dalem]

client library minor version mismatch

well WordPress seams to think they are mismatched so that would be the fist thing to do

 

[cPanelMichael]

Hello

Are you able to reproduce the issue when installing a new instance of WordPress under a test account? If not, the issue might be related to a third-party WordPress plugin. Are you using any third-party plugins on this WordPress installation?

Thank you.

 

[Sparklefart]

I'm having the same problem except for the fact that I did not update anything; i got a domain via my school so i don't have many rights. I only use 1 domain and 1 database via phpmyadmin. Everything worked just fine until at some point I got this: Headers and client library minor version mismatch. Headers:50535 Library:100026

All help is welcome!

 

[Web Tech Aruba]

Hey mate, how you doing? well I had this issue with WordPress version 4.5 but then I updated WordPress to the latest version 4.6 and issue resolved automatically, please try to update your WordPress version if you are using WordPress CMS, thank you.

 

[cPanelMichael]

I'm having the same problem except for the fact that I did not update anything; i got a domain via my school so i don't have many rights. I only use 1 domain and 1 database via phpmyadmin. Everything worked just fine until at some point I got this: Headers and client library minor version mismatch. Headers:50535 Library:100026

You may need to report this issue to your web hosting provider for additional assistance, as that's not typically an error message you can address without root access to the server.

Thank you.