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Selfeducation. What is PHP, Apache?
Since last year, I've been making a second attempt to "enter the Web". I study mostly on my own (95%).
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PHP is a programming language.
PHP can generate just text. The fact that with the help of PHP you can generate HTML pages is already a special case (although this is the most popular use of PHP). But if you wish, you can generate HTML pages as you like, in any programming language.
Apache is a web server . One of the most popular web servers.
For the PHP and Apache bundle, Apache has a special library that allows you to call PHP code execution directly from the web server to generate pages.
Port 80 is the standard port for the HTTP protocol.
To exchange data, two programs must know each other's address.
An IP address is not enough, because on your computer you can have Skype, ICQ, a browser, some kind of toy - and if a data packet arrives over the network, how should the operating system understand which program to transfer this data to? To do this, a "port" is added to the IP address.
When specifying a URL in a browser, you usually don't specify a port, because HTTP is assumed to be port 80 by default, HTTPS port 443 by default. But you can also specify it like this:
http://google.com:80
PS In fact, it is enough to sit on Wikipedia to find out the meaning of the terms you already know.
Start with the basics of PHP, there are many servers that can be installed with one click. If you poke around, knowledge will come)
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