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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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.
| Line | Code |
|---|---|
| 3718 | if ( $update ) { |
| 3719 | /** |
| 3720 | * Fires immediately before an existing post is updated in the database. |
| 3721 | * |
| 3722 | * @since 2.5.0 |
| 3723 | * |
| 3724 | * @param int $post_ID Post ID. |
| 3725 | * @param array $data Array of unslashed post data. |
| 3726 | */ |
| 3727 | do_action( 'pre_post_update', $post_ID, $data ); |
| 3728 | if ( false === $wpdb->update( $wpdb->posts, $data, $where ) ) { |
| 3729 | if ( $wp_error ) { |
| 3730 | return new WP_Error( 'db_update_error', __( 'Could not update post in the database' ), $wpdb->last_error ); |
| 3731 | } else { |
| 3732 | return 0; |
| 3733 | } |
| 3734 | } |
| 3735 | } else { |
| 3736 | // If there is a suggested ID, use it if not already present. |