How do I get the current edit page ID in the admin?

4 comments

1. You can also use

   $post_id = $_GET['post'];
   

   Or you can use a hook (probably better).

   function id_WPSE_114111() {
       global $post;
       $id = $post->ID;
       // do something
   }
   
   add_action( 'admin_notices', 'id_WPSE_114111' );
   

   You will need to add a conditional since this will run on all admin pages, I recommend using get_current_screen();

   For example to run only on pages:

   function id_WPSE_114111() {
   
       global $my_admin_page;
       $screen = get_current_screen();
   
       if ( is_admin() && ($screen->id == 'page') ) {
           global $post;
           $id = $post->ID;
           var_dump($id);
       }
   }
   
   add_action( 'admin_notices', 'id_WPSE_114111' );
   

2. You can add this code in functions.php file and it will give you a meta box above the publish settings box when editing a post or page.

    <?php
   
   function cf_post_id() {
       global $post;
   
      // Get the data
      $id = $post->ID;
   
      // Echo out the field
      echo '<input type="text" name="_id" value="' . $id . '" class="widefat" disabled />';
     }
   
    function ve_custom_meta_boxes() {
       add_meta_box('projects_refid', 'Post ID', 'cf_post_id', 'post', 'side', 'high');
       add_meta_box('projects_refid', 'Page ID', 'cf_post_id', 'page', 'side', 'high');
      }
      add_action('add_meta_boxes', 've_custom_meta_boxes');
   
   ?>
   

3. This is probably the “most secure” way of checking what the current post is on the post edit (and add) page in wp admin.

   function wpse114111_get_current_post_id(): ?WP_Post {
       global $post;
   
           if (empty($post) && array_key_exists('post', $_GET)) {
               $post = get_post($_GET['post']);
           }
   
           // Optional: get an empty post object from the post_type
           if (empty($post) && array_key_exists('post_type', $_GET)) {
               $object = new stdClass();
               $object->post_type = $_GET['post_type'];
               return new WP_Post($object);
           }
   
           if (empty($post)) {
               return null;
           }
   
           return $post;
   }
   

4. You just use this code in the functions.php file, It will give you a current edit page or post ID

   function get_the_current_page_id(){
   $post_id = null;
   if( isset( $_REQUEST['post']) || isset($_REQUEST['post_ID'] ) ){
       $post_id = empty( $_REQUEST['post_ID'] ) ? $_REQUEST['post'] : $_REQUEST['post_ID' ];
   }
       
   //print_r($post_id) For check
   //die();
   }
   
   //get_the_current_page_id() //Call the function
   

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