PHP how to get the base domain/url?

Question

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


        

Answer 1

/**
 * Suppose, you are browsing in your localhost 
 * http://localhost/myproject/index.php?id=8
 */
function getBaseUrl() 
{
    // output: /myproject/index.php
    $currentPath = $_SERVER['PHP_SELF']; 

    // output: Array ( [dirname] => /myproject [basename] => index.php [extension] => php [filename] => index ) 
    $pathInfo = pathinfo($currentPath); 

    // output: localhost
    $hostName = $_SERVER['HTTP_HOST']; 

    // output: http://
    $protocol = strtolower(substr($_SERVER["SERVER_PROTOCOL"],0,5))=='https'?'https':'http';

    // return: http://localhost/myproject/
    return $protocol.'://'.$hostName.$pathInfo['dirname']."/";
}