Escolha uma Página

By default after installation of php7 the display_erros is setting to off.

How to modifi it in php.ini configuration?

If you are using linux probably in /etc/php/7.0/apache2/php.ini (if you are using php directly from terminal you need to change the /etc/php/7.0/cli/php.ini)

display_error: Off

change it to

display_error: On

In addition, change the error_reporting to the correct value, i use E_ALL in my developing server!

Now, restart apache and voilá