Wordpress：当url存储在data属性中时，使用php或jquery返回

I have taken over a WordPress site in which I need to add back buttons within the site.

The browser url is always the same and you have to use navigations buttons that are built-in.

A link is set up as:

<a href="#" data="url">Link text</a>

When someone clicks the link it loads the new page/post within the div container.

I need to find a way to have a user go back to the previous "page" when clicking this custom back button. Like somehow remember the previous page's data attribute then using that to go back.

I really have no idea how to approach this...

You can use javascript history method like this:

<a href="#" data-url="http://previous-url" id='goBack'>Link text</a>

<script>
$('#goBack').click(function (e) {
    e.preventDefault();
    var url_to_go = $(this).attr('data-url');
    window.location.href = url_to_go;
});
</script>