<form method="POST">
    <h3>Editing: widgets.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php
/**
 * WordPress Widgets Administration API
 *
 * @package WordPress
 * @subpackage Administration
 */

/**
 * Display list of the available widgets.
 *
 * @since 2.5.0
 *
 * @global array $wp_registered_widgets
 * @global array $wp_registered_widget_controls
 */
function wp_list_widgets() {
	global $wp_registered_widgets, $wp_registered_widget_controls;

	$sort = $wp_registered_widgets;
	usort( $sort, '_sort_name_callback' );
	$done = array();

	foreach ( $sort as $widget ) {
		if ( in_array( $widget['callback'], $done, true ) ) { // We already showed this multi-widget.
			continue;
		}

		$sidebar = is_active_widget( $widget['callback'], $widget['id'], false, false );
		$done[]  = $widget['callback'];

		if ( ! isset( $widget['params'][0] ) ) {
			$widget['params'][0] = array();
		}

		$args = array(
			'widget_id'   =&gt; $widget['id'],
			'widget_name' =&gt; $widget['name'],
			'_display'    =&gt; 'template',
		);

		if ( isset( $wp_registered_widget_controls[ $widget['id'] ]['id_base'] ) &amp;&amp; isset( $widget['params'][0]['number'] ) ) {
			$id_base            = $wp_registered_widget_controls[ $widget['id'] ]['id_base'];
			$args['_temp_id']   = &quot;$id_base-__i__&quot;;
			$args['_multi_num'] = next_widget_id_number( $id_base );
			$args['_add']       = 'multi';
		} else {
			$args['_add'] = 'single';
			if ( $sidebar ) {
				$args['_hide'] = '1';
			}
		}

		$control_args = array(
			0 =&gt; $args,
			1 =&gt; $widget['params'][0],
		);
		$sidebar_args = wp_list_widget_controls_dynamic_sidebar( $control_args );

		wp_widget_control( ...$sidebar_args );
	}
}

/**
 * Callback to sort array by a 'name' key.
 *
 * @since 3.1.0
 * @access private
 *
 * @param array $a First array.
 * @param array $b Second array.
 * @return int
 */
function _sort_name_callback( $a, $b ) {
	return strnatcasecmp( $a['name'], $b['name'] );
}

/**
 * Show the widgets and their settings for a sidebar.
 * Used in the admin widget config screen.
 *
 * @since 2.5.0
 *
 * @param string $sidebar      Sidebar ID.
 * @param string $sidebar_name Optional. Sidebar name. Default empty.
 */
function wp_list_widget_controls( $sidebar, $sidebar_name = '' ) {
	add_filter( 'dynamic_sidebar_params', 'wp_list_widget_controls_dynamic_sidebar' );

	$description = wp_sidebar_description( $sidebar );

	echo '&lt;div id=&quot;' . esc_attr( $sidebar ) . '&quot; class=&quot;widgets-sortables&quot;&gt;';

	if ( $sidebar_name ) {
		$add_to = sprintf(
			/* translators: %s: Widgets sidebar name. */
			__( 'Add to: %s' ),
			$sidebar_name
		);
		?&gt;
		&lt;div class=&quot;sidebar-name&quot; data-add-to=&quot;&lt;?php echo esc_attr( $add_to ); ?&gt;&quot;&gt;
			&lt;button type=&quot;button&quot; class=&quot;handlediv hide-if-no-js&quot; aria-expanded=&quot;true&quot;&gt;
				&lt;span class=&quot;screen-reader-text&quot;&gt;&lt;?php echo esc_html( $sidebar_name ); ?&gt;&lt;/span&gt;
				&lt;span class=&quot;toggle-indicator&quot; aria-hidden=&quot;true&quot;&gt;&lt;/span&gt;
			&lt;/button&gt;
			&lt;h2&gt;&lt;?php echo esc_html( $sidebar_name ); ?&gt; &lt;span class=&quot;spinner&quot;&gt;&lt;/span&gt;&lt;/h2&gt;
		&lt;/div&gt;
		&lt;?php
	}

	if ( ! empty( $description ) ) {
		?&gt;
		&lt;div class=&quot;sidebar-description&quot;&gt;
			&lt;p class=&quot;description&quot;&gt;&lt;?php echo $description; ?&gt;&lt;/p&gt;
		&lt;/div&gt;
		&lt;?php
	}

	dynamic_sidebar( $sidebar );

	echo '&lt;/div&gt;';
}

/**
 * Retrieves the widget control arguments.
 *
 * @since 2.5.0
 *
 * @global array $wp_registered_widgets
 *
 * @param array $params
 * @return array
 */
function wp_list_widget_controls_dynamic_sidebar( $params ) {
	global $wp_registered_widgets;
	static $i = 0;
	++$i;

	$widget_id = $params[0]['widget_id'];
	$id        = isset( $params[0]['_temp_id'] ) ? $params[0]['_temp_id'] : $widget_id;
	$hidden    = isset( $params[0]['_hide'] ) ? ' style=&quot;display:none;&quot;' : '';

	$params[0]['before_widget'] = &quot;&lt;div id='widget-{$i}_{$id}' class='widget'$hidden&gt;&quot;;
	$params[0]['after_widget']  = '&lt;/div&gt;';
	$params[0]['before_title']  = '%BEG_OF_TITLE%'; // Deprecated.
	$params[0]['after_title']   = '%END_OF_TITLE%'; // Deprecated.

	if ( is_callable( $wp_registered_widgets[ $widget_id ]['callback'] ) ) {
		$wp_registered_widgets[ $widget_id ]['_callback'] = $wp_registered_widgets[ $widget_id ]['callback'];
		$wp_registered_widgets[ $widget_id ]['callback']  = 'wp_widget_control';
	}

	return $params;
}

/**
 * @global array $wp_registered_widgets
 *
 * @param string $id_base
 * @return int
 */
function next_widget_id_number( $id_base ) {
	global $wp_registered_widgets;
	$number = 1;

	foreach ( $wp_registered_widgets as $widget_id =&gt; $widget ) {
		if ( preg_match( '/' . preg_quote( $id_base, '/' ) . '-([0-9]+)$/', $widget_id, $matches ) ) {
			$number = max( $number, $matches[1] );
		}
	}
	++$number;

	return $number;
}

/**
 * Meta widget used to display the control form for a widget.
 *
 * Called from dynamic_sidebar().
 *
 * @since 2.5.0
 *
 * @global array $wp_registered_widgets
 * @global array $wp_registered_widget_controls
 * @global array $sidebars_widgets
 *
 * @param array $sidebar_args
 * @return array
 */
function wp_widget_control( $sidebar_args ) {
	global $wp_registered_widgets, $wp_registered_widget_controls, $sidebars_widgets;

	$widget_id  = $sidebar_args['widget_id'];
	$sidebar_id = isset( $sidebar_args['id'] ) ? $sidebar_args['id'] : false;
	$key        = $sidebar_id ? array_search( $widget_id, $sidebars_widgets[ $sidebar_id ], true ) : '-1'; // Position of widget in sidebar.
	$control    = isset( $wp_registered_widget_controls[ $widget_id ] ) ? $wp_registered_widget_controls[ $widget_id ] : array();
	$widget     = $wp_registered_widgets[ $widget_id ];

	$id_format     = $widget['id'];
	$widget_number = isset( $control['params'][0]['number'] ) ? $control['params'][0]['number'] : '';
	$id_base       = isset( $control['id_base'] ) ? $control['id_base'] : $widget_id;
	$width         = isset( $control['width'] ) ? $control['width'] : '';
	$height        = isset( $control['height'] ) ? $control['height'] : '';
	$multi_number  = isset( $sidebar_args['_multi_num'] ) ? $sidebar_args['_multi_num'] : '';
	$add_new       = isset( $sidebar_args['_add'] ) ? $sidebar_args['_add'] : '';

	$before_form           = isset( $sidebar_args['before_form'] ) ? $sidebar_args['before_form'] : '&lt;form method=&quot;post&quot;&gt;';
	$after_form            = isset( $sidebar_args['after_form'] ) ? $sidebar_args['after_form'] : '&lt;/form&gt;';
	$before_widget_content = isset( $sidebar_args['before_widget_content'] ) ? $sidebar_args['before_widget_content'] : '&lt;div class=&quot;widget-content&quot;&gt;';
	$after_widget_content  = isset( $sidebar_args['after_widget_content'] ) ? $sidebar_args['after_widget_content'] : '&lt;/div&gt;';

	$query_arg = array( 'editwidget' =&gt; $widget['id'] );
	if ( $add_new ) {
		$query_arg['addnew'] = 1;
		if ( $multi_number ) {
			$query_arg['num']  = $multi_number;
			$query_arg['base'] = $id_base;
		}
	} else {
		$query_arg['sidebar'] = $sidebar_id;
		$query_arg['key']     = $key;
	}

	/*
	 * We aren't showing a widget control, we're outputting a template
	 * for a multi-widget control.
	 */
	if ( isset( $sidebar_args['_display'] ) &amp;&amp; 'template' === $sidebar_args['_display'] &amp;&amp; $widget_number ) {
		// number == -1 implies a template where id numbers are replaced by a generic '__i__'.
		$control['params'][0]['number'] = -1;
		// With id_base widget ID's are constructed like {$id_base}-{$id_number}.
		if ( isset( $control['id_base'] ) ) {
			$id_format = $control['id_base'] . '-__i__';
		}
	}

	$wp_registered_widgets[ $widget_id ]['callback'] = $wp_registered_widgets[ $widget_id ]['_callback'];
	unset( $wp_registered_widgets[ $widget_id ]['_callback'] );

	$widget_title = esc_html( strip_tags( $sidebar_args['widget_name'] ) );
	$has_form     = 'noform';

	echo $sidebar_args['before_widget'];
	?&gt;
	&lt;div class=&quot;widget-top&quot;&gt;
	&lt;div class=&quot;widget-title-action&quot;&gt;
		&lt;button type=&quot;button&quot; class=&quot;widget-action hide-if-no-js&quot; aria-expanded=&quot;false&quot;&gt;
			&lt;span class=&quot;screen-reader-text edit&quot;&gt;
				&lt;?php
				/* translators: Hidden accessibility text. %s: Widget title. */
				printf( __( 'Edit widget: %s' ), $widget_title );
				?&gt;
			&lt;/span&gt;
			&lt;span class=&quot;screen-reader-text add&quot;&gt;
				&lt;?php
				/* translators: Hidden accessibility text. %s: Widget title. */
				printf( __( 'Add widget: %s' ), $widget_title );
				?&gt;
			&lt;/span&gt;
			&lt;span class=&quot;toggle-indicator&quot; aria-hidden=&quot;true&quot;&gt;&lt;/span&gt;
		&lt;/button&gt;
		&lt;a class=&quot;widget-control-edit hide-if-js&quot; href=&quot;&lt;?php echo esc_url( add_query_arg( $query_arg ) ); ?&gt;&quot;&gt;
			&lt;span class=&quot;edit&quot;&gt;&lt;?php _ex( 'Edit', 'widget' ); ?&gt;&lt;/span&gt;
			&lt;span class=&quot;add&quot;&gt;&lt;?php _ex( 'Add', 'widget' ); ?&gt;&lt;/span&gt;
			&lt;span class=&quot;screen-reader-text&quot;&gt;&lt;?php echo $widget_title; ?&gt;&lt;/span&gt;
		&lt;/a&gt;
	&lt;/div&gt;
	&lt;div class=&quot;widget-title&quot;&gt;&lt;h3&gt;&lt;?php echo $widget_title; ?&gt;&lt;span class=&quot;in-widget-title&quot;&gt;&lt;/span&gt;&lt;/h3&gt;&lt;/div&gt;
	&lt;/div&gt;

	&lt;div class=&quot;widget-inside&quot;&gt;
	&lt;?php echo $before_form; ?&gt;
	&lt;?php echo $before_widget_content; ?&gt;
	&lt;?php
	if ( isset( $control['callback'] ) ) {
		$has_form = call_user_func_array( $control['callback'], $control['params'] );
	} else {
		echo &quot;\t\t&lt;p&gt;&quot; . __( 'There are no options for this widget.' ) . &quot;&lt;/p&gt;\n&quot;;
	}

	$noform_class = '';
	if ( 'noform' === $has_form ) {
		$noform_class = ' widget-control-noform';
	}
	?&gt;
	&lt;?php echo $after_widget_content; ?&gt;
	&lt;input type=&quot;hidden&quot; name=&quot;widget-id&quot; class=&quot;widget-id&quot; value=&quot;&lt;?php echo esc_attr( $id_format ); ?&gt;&quot; /&gt;
	&lt;input type=&quot;hidden&quot; name=&quot;id_base&quot; class=&quot;id_base&quot; value=&quot;&lt;?php echo esc_attr( $id_base ); ?&gt;&quot; /&gt;
	&lt;input type=&quot;hidden&quot; name=&quot;widget-width&quot; class=&quot;widget-width&quot; value=&quot;&lt;?php echo esc_attr( $width ); ?&gt;&quot; /&gt;
	&lt;input type=&quot;hidden&quot; name=&quot;widget-height&quot; class=&quot;widget-height&quot; value=&quot;&lt;?php echo esc_attr( $height ); ?&gt;&quot; /&gt;
	&lt;input type=&quot;hidden&quot; name=&quot;widget_number&quot; class=&quot;widget_number&quot; value=&quot;&lt;?php echo esc_attr( $widget_number ); ?&gt;&quot; /&gt;
	&lt;input type=&quot;hidden&quot; name=&quot;multi_number&quot; class=&quot;multi_number&quot; value=&quot;&lt;?php echo esc_attr( $multi_number ); ?&gt;&quot; /&gt;
	&lt;input type=&quot;hidden&quot; name=&quot;add_new&quot; class=&quot;add_new&quot; value=&quot;&lt;?php echo esc_attr( $add_new ); ?&gt;&quot; /&gt;

	&lt;div class=&quot;widget-control-actions&quot;&gt;
		&lt;div class=&quot;alignleft&quot;&gt;
			&lt;button type=&quot;button&quot; class=&quot;button-link button-link-delete widget-control-remove&quot;&gt;&lt;?php _e( 'Delete' ); ?&gt;&lt;/button&gt;
			&lt;span class=&quot;widget-control-close-wrapper&quot;&gt;
				| &lt;button type=&quot;button&quot; class=&quot;button-link widget-control-close&quot;&gt;&lt;?php _e( 'Done' ); ?&gt;&lt;/button&gt;
			&lt;/span&gt;
		&lt;/div&gt;
		&lt;div class=&quot;alignright&lt;?php echo $noform_class; ?&gt;&quot;&gt;
			&lt;?php submit_button( __( 'Save' ), 'primary widget-control-save right', 'savewidget', false, array( 'id' =&gt; 'widget-' . esc_attr( $id_format ) . '-savewidget' ) ); ?&gt;
			&lt;span class=&quot;spinner&quot;&gt;&lt;/span&gt;
		&lt;/div&gt;
		&lt;br class=&quot;clear&quot; /&gt;
	&lt;/div&gt;
	&lt;?php echo $after_form; ?&gt;
	&lt;/div&gt;

	&lt;div class=&quot;widget-description&quot;&gt;
	&lt;?php
	$widget_description = wp_widget_description( $widget_id );
	echo ( $widget_description ) ? &quot;$widget_description\n&quot; : &quot;$widget_title\n&quot;;
	?&gt;
	&lt;/div&gt;
	&lt;?php
	echo $sidebar_args['after_widget'];

	return $sidebar_args;
}

/**
 * @param string $classes
 * @return string
 */
function wp_widgets_access_body_class( $classes ) {
	return &quot;$classes widgets_access &quot;;
}
</textarea><br>
    <input type="submit" value="Save">
</form>