How to make nested shortcodes work in Wordpress?

Question

WordPress

How to make nested shortcodes work in Wordpress when one shortcode is nested in another?

Answer 1

Execute the do_shortcode() function inside the parent shortcode.
Example:

function parent_shortcode($atts, $content) {
    return 'Hello ' . do_shortcode($content);
}
function children_shortcode() {
    return "Children Shortcode";
}
add_shortcode('parent', 'parent_shortcode');
add_shortcode('children', 'children_shortcode');

// ****

[parent] [children] [/parent] // Hello Children Shortcode