Open the php.ini with text editor –
For php 7.2 –
sudo subl /etc/php/7.2/apache2/php.ini
# find and replace
display_errors = On
display_startup_errors = On
You can also do it from your project root index file. Put the following file on your project index.php.
error_reporting(E_ALL);
ini_set('display_errors', TRUE);
ini_set('display_startup_errors', TRUE);
Don’t forget to restart apache2..
sudo /etc/init.d/apache2 restart