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функция не описана

WP_Widget_Categories::widget() WP 2.8.0

Outputs the content for the current Categories widget instance.

Это метод класса: WP_Widget_Categories

Возвращает

Null. Ничего.

Использование

$WP_Widget_Categories = new WP_Widget_Categories();
$var = $WP_Widget_Categories->widget( $args, $instance );
$args(массив) (обязательный)
Display arguments including 'before_title', 'after_title', 'before_widget', and 'after_widget'.
$instance(массив) (обязательный)
Settings for the current Categories widget instance.

Заметки

  • Static. true/false. $first_dropdown

Список изменений

С версии 2.8.0 Введена.
С версии 4.2.0 Creates a unique HTML ID for the

Код WP Widget Categories::widget: wp-includes/widgets/class-wp-widget-categories.php WP 5.4.1

<?php
public function widget( $args, $instance ) {
	static $first_dropdown = true;

	$title = ! empty( $instance['title'] ) ? $instance['title'] : __( 'Categories' );

	/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
	$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );

	$count        = ! empty( $instance['count'] ) ? '1' : '0';
	$hierarchical = ! empty( $instance['hierarchical'] ) ? '1' : '0';
	$dropdown     = ! empty( $instance['dropdown'] ) ? '1' : '0';

	echo $args['before_widget'];

	if ( $title ) {
		echo $args['before_title'] . $title . $args['after_title'];
	}

	$cat_args = array(
		'orderby'      => 'name',
		'show_count'   => $count,
		'hierarchical' => $hierarchical,
	);

	if ( $dropdown ) {
		echo sprintf( '<form action="%s" method="get">', esc_url( home_url() ) );
		$dropdown_id    = ( $first_dropdown ) ? 'cat' : "{$this->id_base}-dropdown-{$this->number}";
		$first_dropdown = false;

		echo '<label class="screen-reader-text" for="' . esc_attr( $dropdown_id ) . '">' . $title . '</label>';

		$cat_args['show_option_none'] = __( 'Select Category' );
		$cat_args['id']               = $dropdown_id;

		/**
		 * Filters the arguments for the Categories widget drop-down.
		 *
		 * @since 2.8.0
		 * @since 4.9.0 Added the `$instance` parameter.
		 *
		 * @see wp_dropdown_categories()
		 *
		 * @param array $cat_args An array of Categories widget drop-down arguments.
		 * @param array $instance Array of settings for the current widget.
		 */
		wp_dropdown_categories( apply_filters( 'widget_categories_dropdown_args', $cat_args, $instance ) );

		echo '</form>';

		$type_attr = current_theme_supports( 'html5', 'script' ) ? '' : ' type="text/javascript"';
		?>

<script<?php echo $type_attr; ?>>
/* <![CDATA[ */
(function() {
var dropdown = document.getElementById( "<?php echo esc_js( $dropdown_id ); ?>" );
function onCatChange() {
	if ( dropdown.options[ dropdown.selectedIndex ].value > 0 ) {
		dropdown.parentNode.submit();
	}
}
dropdown.onchange = onCatChange;
})();
/* ]]> */
</script>

		<?php
	} else {
		?>
	<ul>
		<?php
		$cat_args['title_li'] = '';

		/**
		 * Filters the arguments for the Categories widget.
		 *
		 * @since 2.8.0
		 * @since 4.9.0 Added the `$instance` parameter.
		 *
		 * @param array $cat_args An array of Categories widget options.
		 * @param array $instance Array of settings for the current widget.
		 */
		wp_list_categories( apply_filters( 'widget_categories_args', $cat_args, $instance ) );
		?>
	</ul>
		<?php
	}

	echo $args['after_widget'];
}