Why doesn't php compile to javascript code?

Question

PHP

The question is:
you need to get the IP of site visitors. JavaScript doesn't seem to have this option. But there is such an opportunity in PHP, IP users are recorded here:
$_SERVER['REMOTE_ADDR']
I use NodeJS as a server.
In the index.html file, I inserted the script:

<script type="text/javascript">
        var ip = "<?php echo $_SERVER['REMOTE_ADDR'] ?>";
        alert("Твой IP "+ip);
        alert(ip);
</script>

PHP installed
But in the browser PHP is not compiled:

Why? What could be the reason?

Answer 1

NodeJS

var ip = req.headers['x-forwarded-for'] || 
     req.connection.remoteAddress || 
     req.socket.remoteAddress ||
     req.connection.socket.remoteAddress;

Answer 2

because you are trying to insert php code into the html document

Answer 3

Well, because NodeJS is not PHP.

Answer 4

I use NodeJS as a server.
In the index.html file, I inserted the script:

1) The node responds to all requests via http, so there is no one to give the file for interpretation in PHP
2) Is PHP installed on the server at all?
3) php is not compiled, but interpreted.
4) standard extension for processed php files (surprise!) - .php

Answer 5

Because php interpreter is not working for you. Most likely, localhost is listening to node.js, not php.