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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 2647 | |
| 2648 | wp_transition_post_status($data['post_status'], $previous_status, $post); |
| 2649 | |
| 2650 | if ( $update ) { |
| 2651 | do_action('edit_post', $post_ID, $post); |
| 2652 | $post_after = get_post($post_ID); |
| 2653 | do_action( 'post_updated', $post_ID, $post_after, $post_before); |
| 2654 | } |
| 2655 | |
| 2656 | do_action('save_post', $post_ID, $post); |
| 2657 | do_action('wp_insert_post', $post_ID, $post); |
| 2658 | |
| 2659 | return $post_ID; |
| 2660 | } |
| 2661 | |
| 2662 | /** |
| 2663 | * Update a post with new post data. |
| 2664 | * |
| 2665 | * The date does not have to be set for drafts. You can set the date and it will |
| Line | Code |
| 2733 | return; |
| 2734 | |
| 2735 | $wpdb->update( $wpdb->posts, array( 'post_status' => 'publish' ), array( 'ID' => $post_id ) ); |
| 2736 | |
| 2737 | $old_status = $post->post_status; |
| 2738 | $post->post_status = 'publish'; |
| 2739 | wp_transition_post_status('publish', $old_status, $post); |
| 2740 | |
| 2741 | do_action('edit_post', $post_id, $post); |
| 2742 | do_action('save_post', $post_id, $post); |
| 2743 | do_action('wp_insert_post', $post_id, $post); |
| 2744 | } |
| 2745 | |
| 2746 | /** |
| 2747 | * Publish future post and make sure post ID has future post status. |
| 2748 | * |
| 2749 | * Invoked by cron 'publish_future_post' event. This safeguard prevents cron |
| 2750 | * from publishing drafts, etc. |
| 2751 | * |