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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 |
|---|---|
| 65 | * @uses $post The current post's DB object. |
| 66 | * @uses get_post_meta() Retrieves the ID of the author who last edited the current post. |
| 67 | * @uses get_userdata() Retrieves the author's DB object. |
| 68 | * @uses apply_filters() Calls 'the_modified_author' hook on the author display name. |
| 69 | * @return string The author's display name. |
| 70 | */ |
| 71 | function get_the_modified_author() { |
| 72 | if ( $last_id = get_post_meta( get_post()->ID, '_edit_last', true) ) { |
| 73 | $last_user = get_userdata($last_id); |
| 74 | return apply_filters('the_modified_author', $last_user->display_name); |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * Display the name of the author who last edited the current post. |
| 80 | * |
| 81 | * @since 2.8 |
| 82 | * @see get_the_author() |
| 83 | * @return string The author's display name, from get_the_modified_author(). |