Apache configuration VirtualHost in lamp for "shunt"

In fact, my ultimate goal is to run PHP at the same time on one of the host's Apache (see the situation and choose a framework to use) and Python (Django Framework, old friends). So my plan is to install the apache+php first, and then I'll put Django on this basis. After loading PHP, I need to configure Apache to see how to get Apache to offload PHP and Python.

The configuration file for Apache in Linux is in the/etc/apache2 directory with a apache2.conf and sites-available/000-default.conf in it. Looking at the contents of these two files, it is almost certain that the files I need to change are the two (unlike Windows, Apache has only httpd.conf this profile). Further understand that the sites-available directory of conf corresponds to a number of sites, and each conf inside can also set different virtualhost, can be used to achieve the "shunt" I want. On the other hand, what is the role of the Conf link under the sites-enabled directory? In fact, there is a corresponding link in the sites-enabled, which means that the link corresponds to sites-available in the Conf is enabled. Site-enabled already have the link of 000-default.conf, so don't care so much, we modify site-available in the 000-default.conf on the line.

Don't talk nonsense. The most useful reference: Apache document VirtualHost Sample https://httpd.apache.org/docs/2.4/vhosts/examples.html

According to my situation, I need to run a number of sites on an IP, and I do not have multiple domain names, then through the different ports to achieve. This is the 4th method "Running different sites on different ports":

Listen
Listen 8000

<virtualhost *:80>
    documentroot/var/www/php
</VirtualHost>

<virtualhost *:8000>
    Documentroot/var/www/django
</VirtualHost>

The simplest configuration is the one above, and I added a bit of log-related stuff myself:

Listen
Listen 8000

<virtualhost *:80>
    ServerAdmin abc@123.com
    documentroot/var/www/php
    errorlog ${apache_log_dir}/php-error.log
    Customlog ${apache_log_dir}/php-access.log
</VirtualHost>

<virtualhost *:8000>
    ServerAdmin abc@123.com
    Documentroot/var/www/django
    errorlog ${apache_log_dir}/django-error.log
    Customlog ${apache_log_dir}/django-access.log
</VirtualHost>

Don't send emails. ${apache_log_dir} is actually/var/log/apache2. Restart Apache.
Now, create a index.php under/var/www/php and/var/www/django, and write some PHP code. Access to 127.0.0.1:80 and 127.0.0.1:8000 are OK.
The next step is to fix the Django installation, and the rest of the VirtualHost configuration is slow.