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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 |
|---|---|
| 99 | do_action( 'wp_dashboard_setup' ); |
| 100 | |
| 101 | /** |
| 102 | * Filter the list of widgets to load for the admin dashboard. |
| 103 | * |
| 104 | * @since 2.5.0 |
| 105 | * |
| 106 | * @param array $dashboard_widgets An array of dashboard widgets. |
| 107 | */ |
| 108 | $dashboard_widgets = apply_filters( 'wp_dashboard_widgets', array() ); |
| 109 | } |
| 110 | |
| 111 | foreach ( $dashboard_widgets as $widget_id ) { |
| 112 | $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>'; |
| 113 | wp_add_dashboard_widget( $widget_id, $name, $wp_registered_widgets[$widget_id]['callback'], $wp_registered_widget_controls[$widget_id]['callback'] ); |
| 114 | } |
| 115 | |
| 116 | if ( 'POST' == $_SERVER['REQUEST_METHOD'] && isset($_POST['widget_id']) ) { |
| 117 | check_admin_referer( 'edit-dashboard-widget_' . $_POST['widget_id'], 'dashboard-widget-nonce' ); |