lib.php

<?php

/**
 * get Url
 * @param type $path
 * @param type $dir
 * @return string
 */
function getUrl($path = "" ,$dir = __DIR__){

    $root = "";
    $dir = str_replace('\\', '/', realpath($dir));

    //HTTPS or HTTP
    $root .= !empty($_SERVER['HTTPS']) ? 'https' : 'http';

    //HOST
    $root .= '://' . $_SERVER['HTTP_HOST'];

    //ALIAS
    if(!empty($_SERVER['CONTEXT_PREFIX'])) {
        $root .= $_SERVER['CONTEXT_PREFIX'];
        $root .= substr($dir, strlen($_SERVER[ 'CONTEXT_DOCUMENT_ROOT' ]));
    } else {
        $root .= substr($dir, strlen($_SERVER[ 'DOCUMENT_ROOT' ]));
    }

    $root .= '/'.$path;

    return $root;
}