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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 |
|---|---|
| 78 | wp_register_widget_control( 'dashboard_primary', __( 'Primary Feed' ), 'wp_dashboard_rss_control', array(), |
| 79 | array( 'widget_id' => 'dashboard_primary' ) |
| 80 | ); |
| 81 | |
| 82 | |
| 83 | // Secondary Feed (Planet) Widget |
| 84 | if ( !isset( $widget_options['dashboard_secondary'] ) ) { |
| 85 | $update = true; |
| 86 | $widget_options['dashboard_secondary'] = array( |
| 87 | 'link' => apply_filters( 'dashboard_secondary_link', __( 'http://planet.wordpress.org/' ) ), |
| 88 | 'url' => apply_filters( 'dashboard_secondary_feed', __( 'http://planet.wordpress.org/feed/' ) ), |
| 89 | 'title' => apply_filters( 'dashboard_secondary_title', __( 'Other WordPress News' ) ), |
| 90 | 'items' => 15 |
| 91 | ); |
| 92 | } |
| 93 | wp_register_sidebar_widget( 'dashboard_secondary', $widget_options['dashboard_secondary']['title'], 'wp_dashboard_empty', |
| 94 | array( 'all_link' => $widget_options['dashboard_secondary']['link'], 'feed_link' => $widget_options['dashboard_secondary']['url'], 'width' => 'full' ), |
| 95 | 'wp_dashboard_cached_rss_widget', 'wp_dashboard_secondary_output' |
| 96 | ); |