How can one troubleshoot a local web server that stops working after PHP installation?

If a local web server stops working after PHP installation, it is likely due to a misconfiguration in the server settings. To troubleshoot this issue, check the server error logs for any specific error messages related to PHP. Additionally, ensure that the PHP module is properly enabled in the server configuration file. Finally, restart the web server after making any changes to the configuration.

// Example PHP code snippet to enable PHP module in Apache server configuration file

sudo nano /etc/apache2/apache2.conf
// Add the following line to enable PHP module
LoadModule php7_module /usr/lib/apache2/modules/libphp7.so

// Restart Apache server
sudo systemctl restart apache2