- Restart apache with command line:
/etc/init.d/apache2 restart
(Apache 7.x: sudo systemctl restart apache2) - php.ini locaction
/etc/php5/apache2
(Apache 7.x : /etc/php/7.2/apache2 - Apache error log location
/etc/php5/apache2/php_errors.log - Apache configuration file location
/etc/apache2/apache2.conf