Q:

Suppress PHP warnings and notices in WordPress pages

When I try to load WordPress, I get a lot of Use of undefined constant ‘view’ - assumed '‘view’' type of warnings and notices in the browser. This causes the pages to fill up with these messages before it renders the actual page content expected.
I tried changing error_reporting = E_ALL to error_reporting = E_ALL & ~E_NOTICE & ~E_WARNING but the warnings and notices still show up.
After doing php --ini I located both the 7.0 and 7.1 ini files and updated the value in both and restarted both FPM services on my vagrant.

/etc/php/7.0/fpm/php.ini
/etc/php/7.1/fpm/php.ini

Why are these still showing up?

A:

You can combine WordPress build-in constants and PHP's ini settings. 
Place these lines in your wp-config.php
ini_set('log_errors','on');
ini_set('display_errors','off');
ini_set('error_reporting', E_ALL );

define('WP_DEBUG', false);
define('WP_DEBUG_LOG', true);
define('WP_DEBUG_DISPLAY', false);

This way all notices, warnings and errors will not be shown on the front-end of your website, but errors are still accesable by a log file.

