Return ID if Parent Page Exists

Do you want to return the ID of the parent page if parent page exists? You may have sub pages or child pages with parent ID. Add the following code to the functions.php file of your WordPress theme to return ID if parent page exists.

function is_subpage() {
    global $post;
    if ( is_page() && $post->post_parent ) {
        return $post->post_parent;
    } else {
        return false;

We hope this code helped you return ID if parent page exists. You may also want to check out our guide on the 15 do’s and don’ts of effective WordPress theming.

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