How to get the base domain url in php

Question

This is my code:

function url(){
    if(isset($_SERVER['HTTPS'])){
        $protocol = ($_SERVER['HTTPS'] && $_SERVER['HTTPS'] != "off") ? "https" : "http";
    }
    else{
        $protocol = 'http';
    }
    return $protocol . "://" . $_SERVER['HTTP_HOST'];
}

For example with the function above, it works fine if I work with the same directory, but if I make a sub directory, and work in it, it will give me the location of the sub directory also for example. I just want example.com but it gives me example.com/sub if I'm working in the folder sub. If I'm using the main directory,the function works fine. Is there an alternative to $_SERVER['HTTP_HOST']?

Or how could I fix my function/code to get the main url only? 

Answer 1

Hello @kartik,

Use SERVER_NAME.

echo $_SERVER['SERVER_NAME']; //Outputs www.example.com

Hope it helps!!