We can either display the coding errors in the browser or log them to a separate log file. It's at the preference of the developer, but I think logging the errors is the ideal solution for future reference. Also, sometimes we need to change the PHP configurations to make our code work. Many hosting servers will not allow you to directly edit the php.ini file, and hence we can use the wp-config.php file to override the default settings of the php.ini file.
Some hosting providers don't provide access to change the php.ini file, and you will have to request modification through server support.
Consider the following configuration rules for error logging with php.ini modifications:
@ini_set( 'log_errors', ...
