Below is the code to auto-populate the post title field with its post ID in WordPress.
| <?php | |
| //* Auto-populate post title field with post ID | |
| add_action('save_post', 'customprefix_update_post_title' ); | |
| function customprefix_update_post_title($post_id) { | |
| $my_post = array(); | |
| $my_post['ID'] = $post_id; | |
| // Auto-populate post title field only if post type = post | |
| if ( get_post_type() == 'post' ) { | |
| $my_post['post_title'] = get_the_ID(); | |
| } | |
| // Avoid infinite loops | |
| // https://codex.wordpress.org/Plugin_API/Action_Reference/save_post#Avoiding_infinite_loops | |
| remove_action( 'save_post', 'customprefix_update_post_title' ); | |
| wp_update_post($my_post); | |
| add_action( 'save_post', 'customprefix_update_post_title' ); | |
| } |