How to resolve Ubuntu’s inability to parse PHP scripts?

If Ubuntu is unable to parse PHP scripts, it may be because the PHP interpreter is not properly installed or the Apache server is not configured correctly.

Here are some possible solutions:

1. Ensure that PHP is installed correctly: Run the command php -v in the terminal to check the PHP version. If PHP is not installed, you can install it using the command sudo apt install php.
2. Make sure Apache server is properly configured by running the command sudo nano /etc/apache2/mods-enabled/dir.conf in the terminal to open the Apache configuration file. Ensure that index.php is at the forefront of the DirectoryIndex directive in the file. If it is not, move it to the front and save the file.
3. Restart the Apache server by running the command sudo systemctl restart apache2 in the terminal.
4. Check file permissions: Ensure that the file permissions for the PHP script are correctly set. You can use the command sudo chmod 755 filename.php to set the file permissions to 755.
5. Check if the PHP module is loaded: Run the command “sudo a2enmod php7.x” in the terminal (where 7.x is the installed version of PHP) to enable the PHP module. Then restart the Apache server.

If the aforementioned methods do not solve the problem, further examination of the PHP and Apache configuration files may be necessary, along with consulting the error logs for more information.