Effortlessly Duplicate Any Post or Custom Post Type in WordPress

Are you managing a WordPress site and often find yourself recreating similar posts or pages?

Save time and effort with our new post duplication functionality! This feature allows you to duplicate any post, page, or custom post type in just a few clicks. Whether you’re working with blog posts, portfolio items, or custom content types, you can now create a draft copy of any existing content without hassle.

Main Features of the Script

1. Supports All Custom Post Types: This function isn’t limited to standard posts or pages. It works seamlessly with all custom post types on your WordPress installation.
2. Retains Original Content Structure: The duplicated content keeps the title, content, metadata, taxonomy terms, and even custom fields intact.
   User-Friendly
3. Workflow: Simply click the “Duplicate” action under the post or page you want to replicate, and a draft copy will instantly be created.
4. Secure and Reliable: Built with WordPress best practices in mind, including nonce verification for enhanced security.

How to Use

• Navigate to your WordPress dashboard and find the post, page, or custom content you want to duplicate.
• Hover over the item and click the “Duplicate” action.
• Edit the duplicated draft as needed and publish when ready!

This tool is ideal for anyone who wants to streamline their content creation process. Whether you’re a site administrator, content manager, or developer, this feature simplifies repetitive tasks and helps you focus on delivering value.

How to Set It Up

Copy and paste the following code into your mu-plugin or function file:

<?php
/**
*	Duplicate page, post and CPT
*/
add_action( 'admin_action_wpster_duplicate_post_as_draft', 'wpster_duplicate_post_as_draft' );
function wpster_duplicate_post_as_draft(){
  global $wpdb;
  if (! ( isset( $_GET['post']) || isset( $_POST['post'])  || ( isset($_REQUEST['action']) && 'wpster_duplicate_post_as_draft' == $_REQUEST['action'] ) ) ) {
    wp_die('No post to duplicate has been supplied!');
  }
  if ( !isset( $_GET['duplicate_nonce'] ) || !wp_verify_nonce( $_GET['duplicate_nonce'], basename( __FILE__ ) ) )
    return;
  $post_id = (isset($_GET['post']) ? absint( $_GET['post'] ) : absint( $_POST['post'] ) );
  $post = get_post( $post_id );
  $current_user = wp_get_current_user();
  $new_post_author = $current_user->ID;
  if (isset( $post ) && $post != null) {
    $args = array(
      'comment_status' => $post->comment_status,
      'ping_status'    => $post->ping_status,
      'post_author'    => $new_post_author,
      'post_content'   => $post->post_content,
      'post_excerpt'   => $post->post_excerpt,
      'post_name'      => $post->post_name,
      'post_parent'    => $post->post_parent,
      'post_password'  => $post->post_password,
      'post_status'    => 'draft',
      'post_title'     => $post->post_title,
      'post_type'      => $post->post_type,
      'to_ping'        => $post->to_ping,
      'menu_order'     => $post->menu_order
    );
    $new_post_id = wp_insert_post( $args );
    $taxonomies = get_object_taxonomies($post->post_type);
    foreach ($taxonomies as $taxonomy) {
      $post_terms = wp_get_object_terms($post_id, $taxonomy, array('fields' => 'slugs'));
      wp_set_object_terms($new_post_id, $post_terms, $taxonomy, false);
    }
    $post_meta_infos = $wpdb->get_results("SELECT meta_key, meta_value FROM $wpdb->postmeta WHERE post_id=$post_id");
    if (count($post_meta_infos)!=0) {
      $sql_query = "INSERT INTO $wpdb->postmeta (post_id, meta_key, meta_value) ";
      foreach ($post_meta_infos as $meta_info) {
        $meta_key = $meta_info->meta_key;
        if( $meta_key == '_wp_old_slug' ) continue;
        $meta_value = addslashes($meta_info->meta_value);
        $sql_query_sel[]= "SELECT $new_post_id, '$meta_key', '$meta_value'";
      }
      $sql_query.= implode(" UNION ALL ", $sql_query_sel);
      $wpdb->query($sql_query);
    }
    wp_redirect( admin_url( 'post.php?action=edit&post=' . $new_post_id ) );
    exit;
  } else {
    wp_die('Post creation failed, could not find original post: ' . $post_id);
  }
}
add_filter( 'post_row_actions', 'wpster_duplicate_post_link', 10, 2 );
add_filter( 'page_row_actions', 'wpster_duplicate_post_link', 10, 2 );
function wpster_duplicate_post_link( $actions, $post ) {
  if (current_user_can('edit_posts')) {
    $actions['duplicate'] = '<a href="' . wp_nonce_url('admin.php?action=wpster_duplicate_post_as_draft&post=' . $post->ID, basename(__FILE__), 'duplicate_nonce' ) . '" title="Dupliquer cet élément" rel="permalink">Dupliquer</a>';
  }
  return $actions;
}
?>

Start duplicating your posts today and boost your productivity!