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warning: mysqli::real_connect(): Headers and client library minor version mismatch. Headers:50537 Library:50623

How do I do with it? I think I have a different version between mysql client and server, but after I updated by using yum, this wranning appear again. System:centos

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  • did you also update php?
    – taliezin
    Mar 15, 2015 at 14:42

1 Answer 1

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There is a version mismatch. I tried removing php-mysql and replace it with php-mysqlnd to in order to fix the conflict.

On Centos, running the one liner

rpm -e --nodeps php-mysql && yum install php-mysqlnd -y && service httpd graceful

according to the answer at the bottom of this page got the php-mysqlnd installed.

But be warned, this rpm --nodeps option is considered harmful according to http://www.tummy.com/blogs/2005/08/12/-force-nodeps-considered-harmful/.

My server doesn't show the errors after doing that.

I'm using Centos 7, php-mysqlnd-5.4.16-23, php 5.4.16, mysql Distrib 5.6.23, and apache 2.2.x

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