I have Centos installed.In error logs I get the errorPHP Warning:  mysqli::mysqli(): Headers and client library minor version mismatch.I have PHP 5.5 and mysql 5.6 installed.It was suggested to use sudo yum install php-mysqlndHowever, it gave error:Processing Conflict: php55w-common-5.5.38-1.w7.x86_64 conflicts php-common < 5.5Finished Dependency ResolutionUPDATEInstalled mysqlnd- mismatch problem is not solved.
PHP 5.5 mysql 5.6 version mismatch
centos;mysql;php
The problem here is that the php-mysqlnd found in your repository is not 5.5. To install this package in the correct version, try runningsudo yum install php55w-mysqlnd