Check your WordPress site’s php version
After upgrading WordPress version to 5.02, in many websites has been problems with ”connecting database”. etc. One reason can be that in the site’s can be a different .config file than what server dashboard shows. This conflict may causes slowness, which leads connection errors.
Custom config is a hidden file like .ovhconfig.
To check if your php version is different in your website than in your host server, make a phpinfo.php file and put that file into your website’s root / using FileZilla for example.
The file:
< ?php
// Show all information, defaults to INFO_ALL
phpinfo();
// Show just the module information.
// phpinfo(8) yields identical results.
phpinfo(INFO_MODULES);
?>
Useful links:
How to change your PHP version and upgrading to PHP 7
Restoring Your Database From Backup
How do I view my PHP environment settings?
How to deactivate all plugins when not able to access the administrative menus?
