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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 |
|---|---|
| 123 | do_action( 'wp_dashboard_setup' ); |
| 124 | |
| 125 | /** |
| 126 | * Filters the list of widgets to load for the admin dashboard. |
| 127 | * |
| 128 | * @since 2.5.0 |
| 129 | * |
| 130 | * @param string[] $dashboard_widgets An array of dashboard widget IDs. |
| 131 | */ |
| 132 | $dashboard_widgets = apply_filters( 'wp_dashboard_widgets', array() ); |
| 133 | } |
| 134 | |
| 135 | foreach ( $dashboard_widgets as $widget_id ) { |
| 136 | $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>'; |
| 137 | wp_add_dashboard_widget( $widget_id, $name, $wp_registered_widgets[ $widget_id ]['callback'], $wp_registered_widget_controls[ $widget_id ]['callback'] ); |
| 138 | } |
| 139 | |
| 140 | if ( 'POST' === $_SERVER['REQUEST_METHOD'] && isset( $_POST['widget_id'] ) ) { |
| 141 | check_admin_referer( 'edit-dashboard-widget_' . $_POST['widget_id'], 'dashboard-widget-nonce' ); |