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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 |
|---|---|
| 822 | /** |
| 823 | * WordPress News dashboard widget. |
| 824 | * |
| 825 | * @since 2.7.0 |
| 826 | */ |
| 827 | function wp_dashboard_primary() { |
| 828 | $feeds = array( |
| 829 | 'news' => array( |
| 830 | 'link' => apply_filters( 'dashboard_primary_link', __( 'http://wordpress.org/news/' ) ), |
| 831 | 'url' => apply_filters( 'dashboard_primary_feed', __( 'http://wordpress.org/news/feed/' ) ), |
| 832 | 'title' => apply_filters( 'dashboard_primary_title', __( 'WordPress Blog' ) ), |
| 833 | 'items' => 1, |
| 834 | 'show_summary' => 1, |
| 835 | 'show_author' => 0, |
| 836 | 'show_date' => 1, |
| 837 | ), |
| 838 | 'planet' => array( |
| 839 | 'link' => apply_filters( 'dashboard_secondary_link', __( 'http://planet.wordpress.org/' ) ), |
| 840 | 'url' => apply_filters( 'dashboard_secondary_feed', __( 'http://planet.wordpress.org/feed/' ) ), |