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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 |
|---|---|
| 4945 | $update['ID'] = $revision['post_parent']; |
| 4946 | |
| 4947 | $update = add_magic_quotes( $update ); //since data is from db |
| 4948 | |
| 4949 | $post_id = wp_update_post( $update ); |
| 4950 | if ( is_wp_error( $post_id ) ) |
| 4951 | return $post_id; |
| 4952 | |
| 4953 | if ( $post_id ) |
| 4954 | do_action( 'wp_restore_post_revision', $post_id, $revision['ID'] ); |
| 4955 | |
| 4956 | return $post_id; |
| 4957 | } |
| 4958 | |
| 4959 | /** |
| 4960 | * Deletes a revision. |
| 4961 | * |
| 4962 | * Deletes the row from the posts table corresponding to the specified revision. |
| 4963 | * |