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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 |
|---|---|
| 3855 | |
| 3856 | $post = _wp_post_revision_fields( $post, $autosave ); |
| 3857 | $post = add_magic_quotes($post); //since data is from db |
| 3858 | |
| 3859 | $revision_id = wp_insert_post( $post ); |
| 3860 | if ( is_wp_error($revision_id) ) |
| 3861 | return $revision_id; |
| 3862 | |
| 3863 | if ( $revision_id ) |
| 3864 | do_action( '_wp_put_post_revision', $revision_id ); |
| 3865 | return $revision_id; |
| 3866 | } |
| 3867 | |
| 3868 | /** |
| 3869 | * Gets a post revision. |
| 3870 | * |
| 3871 | * @package WordPress |
| 3872 | * @subpackage Post_Revisions |
| 3873 | * @since 2.6.0 |