If you are using an older PHP version, you may see the following warning: Warning: main(__DIR__/wp-load.php)
Warning: main(__DIR__/wp-load.php)
This occurs because the version of PHP you are currently running is out of date. By using the latest PHP version, this warning can be avoided.
It is also possible to specify the PHP version using an .htaccess file. However, this setting varies depending on your hosting environment, so it is important to investigate how to specify the PHP version that corresponds to your hosting service.