


The default setting of PHP under Ubuntu is not to display error messages. If the program makes an error, it will display an "error message that cannot handle this request." This is very inconvenient in a development environment.
In fact, we only need to edit the apache configuration file
1. My apache configuration file directory is /etc/apache2/apache2.conf
sudo vim /etc/apache2/apache2.conf
Finally add the following Two lines
php_flag display_errors on
php_value error_reporting 2039
2. Restart apache
sudo service apache2 restart
This completes the display of the error message.
Note: If it still doesn’t work, change the configuration under php.ini (I can display it without changing it, because the code added above is already enabled)
sudo vim /etc/php/7.0/cli/php. ini
Search for display_errors. The default is display_errors=Off. Change to display_errors=On. Save, exit and restart apache2.
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