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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 | 'link' => apply_filters( 'dashboard_secondary_link', __( 'http://planet.wordpress.org/' ) ), |
| 79 | 'url' => apply_filters( 'dashboard_secondary_feed', __( 'http://planet.wordpress.org/feed/' ) ), |
| 80 | 'title' => apply_filters( 'dashboard_secondary_title', __( 'Other WordPress News' ) ), |
| 81 | 'items' => 5 |
| 82 | ); |
| 83 | } |
| 84 | wp_add_dashboard_widget( 'dashboard_secondary', $widget_options['dashboard_secondary']['title'], 'wp_dashboard_secondary', 'wp_dashboard_secondary_control' ); |
| 85 | |
| 86 | // Hook to register new widgets |
| 87 | do_action( 'wp_dashboard_setup' ); |
| 88 | |
| 89 | // Filter widget order |
| 90 | $dashboard_widgets = apply_filters( 'wp_dashboard_widgets', array() ); |
| 91 | |
| 92 | foreach ( $dashboard_widgets as $widget_id ) { |
| 93 | $name = empty( $wp_registered_widgets[$widget_id]['all_link'] ) ? $wp_registered_widgets[$widget_id]['name'] : $wp_registered_widgets[$widget_id]['name'] . " <a href='{$wp_registered_widgets[$widget_id]['all_link']}' class='edit-box open-box'>" . __('View all') . '</a>'; |
| 94 | wp_add_dashboard_widget( $widget_id, $name, $wp_registered_widgets[$widget_id]['callback'], $wp_registered_widget_controls[$widget_id]['callback'] ); |
| 95 | } |
| 96 | |