How do put text from a text file in my webpage [duplicate]

In case we are in the same page do following

sudo apt-get install php -y sudo apt-get install php-{bcmath,bz2,intl,gd,mbstring,mysql,zip,fpm} -y

To enable PHP 7.2 FPM in Apache2 do:

a2enmod proxy_fcgi setenvif

a2enconf php7.2-fpm

update 2: Apache downloads .php file instead of rendering

After that, I faced above issue. There are similar questions like this.

I don't know why but it only happened for my .php files in /var/www/html/ root folder. everything was ok for sub-directories. (for example wordpress and phpmyadmin worked fine)

So here is my solution. I decided to enable php module. so I ran this command:

a2enmod php7.2

but I got this errors:

Considering dependency mpm_prefork for php7.2: Considering conflict mpm_event for mpm_prefork: ERROR: Module mpm_event is enabled - cannot proceed due to conflicts. It needs to be disabled first! Considering conflict mpm_worker for mpm_prefork: ERROR: Could not enable dependency mpm_prefork for php7.2, aborting

so I decided to disable mpm by running following commands:

sudo a2dismod mpm_prefork sudo a2dismod mpm_worker sudo a2dismod mpm_event

then restart apache:

systemctl restart apache2

then enable php7.2 (my installed version):

sudo a2enmod php7.2

and right now everything works fine.