Welcome to the CentOS fora. Please see the recommended reading for new users linked in my signature.
Those "perfect" articles are not recommended as they tell you to do inadvisable things like disabling SELinux and doing Source Installs, and seem to mainly be pushing ISPConfig which seems problematic.
If you have followed that the best approach is probably to do a fresh install to get to a stable configuration, install and configure Apache (httpd), php, and whatever else you need, and learn to manage the system with the supplied tools. If you explain in more detail what problems you are having and functionality you need, rather that just that it needs to work like "wampp" we might be able to offer better help.
You may also want to join the CentOS-pt-br -- Portuguese (Brazilian) CentOS mailing list.
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