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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.
| Line | Code |
|---|---|
| 4880 | |
| 4881 | $post = _wp_post_revision_fields( $post, $autosave ); |
| 4882 | $post = add_magic_quotes($post); //since data is from db |
| 4883 | |
| 4884 | $revision_id = wp_insert_post( $post ); |
| 4885 | if ( is_wp_error($revision_id) ) |
| 4886 | return $revision_id; |
| 4887 | |
| 4888 | if ( $revision_id ) |
| 4889 | do_action( '_wp_put_post_revision', $revision_id ); |
| 4890 | return $revision_id; |
| 4891 | } |
| 4892 | |
| 4893 | /** |
| 4894 | * Gets a post revision. |
| 4895 | * |
| 4896 | * @package WordPress |
| 4897 | * @subpackage Post_Revisions |
| 4898 | * @since 2.6.0 |