php - JavaScript to change language between three or more languages

one text

Solution:

I don't know if this is the efficient way but have solved it.

But there is an issue with opening the link in the new tab using right-click. It shows about:blank#blocked.

I put the javascript in href of anchor tag as below.

<a href="javascript:eng()" class="dropdown-item" >English</a>
<a href="javascript:fre()" class="dropdown-item" >French</a>
<a href="javascript:det()" class="dropdown-item" >German</a>

Create separate function for each link. For example if I am on defaul page the script will be:

function fre() {
    var pathname = window.location.pathname;
    var lang = pathname.split("/")[1];
    var page = pathname.split("/")[2];

    if (window.location.origin !== "" && lang == "") {
        window.location.replace(window.location.origin + "/fr/");
    } else {
        window.location.replace(window.location.origin + "/fr/" + lang);
    }
}
function det() {
    var pathname = window.location.pathname;
    var lang = pathname.split("/")[1];
    var page = pathname.split("/")[2];

    if (window.location.origin !== "" && lang == "") {
        window.location.replace(window.location.origin + "/de/");
    } else {
        window.location.replace(window.location.origin + "/de/" + lang);
    }
}

So the condition checks if the current window URL contains 1 or 2 directories. for example www.xyz.com/ contains 1 which is " / " and www.xyz.com/fr/news contains 1 which is " fr " and 2 is " news " then redirect to the corresponding page in other languages.

Hope this will be helpful for others.

And please if there is any efficient way or improvment you are most welcome.