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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 |
|---|---|
| 88 | $last_user = get_userdata($last_id); |
| 89 | |
| 90 | /** |
| 91 | * Filter the display name of the author who last edited the current post. |
| 92 | * |
| 93 | * @since 2.8.0 |
| 94 | * |
| 95 | * @param string $last_user->display_name The author's display name. |
| 96 | */ |
| 97 | return apply_filters('the_modified_author', $last_user->display_name); |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | /** |
| 102 | * Display the name of the author who last edited the current post, |
| 103 | * if the author's ID is available. |
| 104 | * |
| 105 | * @since 2.8.0 |
| 106 | * |