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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 |
|---|---|
| 113 | wp_add_dashboard_widget( 'dashboard_secondary', $widget_options['dashboard_secondary']['title'], 'wp_dashboard_secondary', 'wp_dashboard_secondary_control' ); |
| 114 | |
| 115 | // Hook to register new widgets |
| 116 | // Filter widget order |
| 117 | if ( is_network_admin() ) { |
| 118 | do_action( 'wp_network_dashboard_setup' ); |
| 119 | $dashboard_widgets = apply_filters( 'wp_network_dashboard_widgets', array() ); |
| 120 | } elseif ( is_user_admin() ) { |
| 121 | do_action( 'wp_user_dashboard_setup' ); |
| 122 | $dashboard_widgets = apply_filters( 'wp_user_dashboard_widgets', array() ); |
| 123 | } else { |
| 124 | do_action( 'wp_dashboard_setup' ); |
| 125 | $dashboard_widgets = apply_filters( 'wp_dashboard_widgets', array() ); |
| 126 | } |
| 127 | |
| 128 | foreach ( $dashboard_widgets as $widget_id ) { |
| 129 | $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>'; |
| 130 | wp_add_dashboard_widget( $widget_id, $name, $wp_registered_widgets[$widget_id]['callback'], $wp_registered_widget_controls[$widget_id]['callback'] ); |
| 131 | } |