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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 |
|---|---|
| 35 | |
| 36 | /** |
| 37 | * Filter the title tag content for an admin page. |
| 38 | * |
| 39 | * @since 3.1.0 |
| 40 | * |
| 41 | * @param string $admin_title The page title, with extra context added. |
| 42 | * @param string $title The original page title. |
| 43 | */ |
| 44 | $admin_title = apply_filters( 'admin_title', $admin_title, $title ); |
| 45 | |
| 46 | wp_user_settings(); |
| 47 | |
| 48 | _wp_admin_html_begin(); |
| 49 | ?> |
| 50 | <title><?php echo $admin_title; ?></title> |
| 51 | <?php |
| 52 | |
| 53 | wp_enqueue_style( 'colors' ); |