Why doesn't Apache have write permissions?

Question

Apache HTTP Server

Hello.
Started learning Vagrant. Installed CentOS 7, installed Apache, mariaDB, php7.2.
Simple script:

Returns:

Permissions:

What could be the problem?
Thank you.

Answer 1

Found a solution. As far as I understood, the SELinux flag was set incorrectly or something like that.
This command helped:
chcon -Rv --type=httpd_sys_rw_content_t /var/www/example.com