apache build PHP website

PHP environment to build
0. environmental inspections
1. Install Service
yum -y install php

2. Start the service
systemctl Start httpd
systemctl enable httpd

3. Add firewall port
Firewall --add-Port-cmd = 80 / TCP
Firewall --add-Port-cmd = 80 / TCP --permanent

4. Edit Home
echo "<php phpinfo (); ??>"> /Var/www/html/index.php

5. Verify browser