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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 |
|---|---|
| 57 | 'wp_dashboard_cached_rss_widget', 'wp_dashboard_plugins_output', |
| 58 | array( 'http://wordpress.org/extend/plugins/rss/browse/popular/', 'http://wordpress.org/extend/plugins/rss/browse/new/', 'http://wordpress.org/extend/plugins/rss/browse/updated/' ) |
| 59 | ); |
| 60 | |
| 61 | // Primary feed (Dev Blog) Widget |
| 62 | if ( !isset( $widget_options['dashboard_primary'] ) ) { |
| 63 | $update = true; |
| 64 | $widget_options['dashboard_primary'] = array( |
| 65 | 'link' => apply_filters( 'dashboard_primary_link', __( 'http://wordpress.org/development/' ) ), |
| 66 | 'url' => apply_filters( 'dashboard_primary_feed', __( 'http://wordpress.org/development/feed/' ) ), |
| 67 | 'title' => apply_filters( 'dashboard_primary_title', __( 'WordPress Development Blog' ) ), |
| 68 | 'items' => 2, |
| 69 | 'show_summary' => 1, |
| 70 | 'show_author' => 0, |
| 71 | 'show_date' => 1 |
| 72 | ); |
| 73 | } |
| 74 | wp_register_sidebar_widget( 'dashboard_primary', $widget_options['dashboard_primary']['title'], 'wp_dashboard_empty', |
| 75 | array( 'all_link' => $widget_options['dashboard_primary']['link'], 'feed_link' => $widget_options['dashboard_primary']['url'], 'width' => 'half', 'class' => 'widget_rss' ), |