Question

I’m currently working at a WordPress Plugin.
It supports shortcode and creates DOM elements, when the shortcode is called.

Now my problem:
I want to identify the elements.

So when the shortcode gets called the first time it should return something like

<div class="myClass-0"></div>

and when it gets called the second time

<div class="myClass-1"></div>

And so on.

Any ideas on this issue?
Thanks for help

Julian.

Answer 1

You could use a static variable. A static variable holds its value globally and is preserved between function calls:

function doSomething() {
    static $i = 0;
    ##############

    return $i++;
}

doSomething(); // 0
doSomething(); // 1

Here’s a demo. It will work in class methods too, of course, though depending on the situation you might be better off using an instance variable.