Why PHP code is output just as text?

Question

PHP

I decided to upgrade to version 7 of PHP. Followed this instruction.
After installation the terminal says php7 is installed:

but here is when I wanted to check the version on the server:

<?php
error_reporting(E_ALL);
ini_set('display_errors', 1);
phpinfo();

php-code was displayed to me as plain text in the browser:

What could be the problem?

Answer 1

– The server configuration does not specify that .php files should be executed as PHP code.
– PHP library not installed

Answer 2

You may be using nginx on your server.
In this case, php must be installed as php-fpm, specifying the version in the configs.

Answer 3

You most likely do not have php-fpm installed (for php7, the package may be called php7.0-fpm).
Or its use is not configured in the web server.
I advise you to use nginx, not apache: it is not only more productive, but also easier to configure.

Answer 4

Make sure you don't have anything like that in your configs or .htaccess
or

<IfModule mod_mime.c>
        <Files ~ \.(php|php3|php4|php5|php6|phtml|pl|asp|aspx|cgi|dll|exe|shtm|shtml|fcg|fcgi|fpl|asmx|pht|py|psp|rb|var)>
                SetHandler text/plain
                ForceType text/plain
        </Files>