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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 |
|---|---|
| 158 | /** |
| 159 | * Fires immediately after a widget has been marked for deletion. |
| 160 | * |
| 161 | * @since 4.4.0 |
| 162 | * |
| 163 | * @param string $widget_id ID of the widget marked for deletion. |
| 164 | * @param string $sidebar_id ID of the sidebar the widget was deleted from. |
| 165 | * @param string $id_base ID base for the widget. |
| 166 | */ |
| 167 | do_action( 'delete_widget', $widget_id, $sidebar_id, $id_base ); |
| 168 | } |
| 169 | |
| 170 | $_POST['widget-id'] = $sidebar; |
| 171 | |
| 172 | foreach ( (array) $wp_registered_widget_updates as $name => $control ) { |
| 173 | if ( $name != $id_base || !is_callable($control['callback']) ) |
| 174 | continue; |
| 175 | |
| 176 | ob_start(); |