WP_Posts_List_Table::categories_dropdown │ protected │ WP 4.6.0

Displays a categories drop-down for filtering on the Posts list table.

Method of the class: WP_Posts_List_Table{}

Returns

null. Nothing (null).

Usage

// protected - for code of main (parent) or child class
$result = $this->categories_dropdown( $post_type );

$post_type(string) (required)

Post type slug.

Notes

• Global. Int. $cat Currently selected category.

Changelog

WP_Posts_List_Table::categories_dropdown() WP Posts List Table::categories dropdown code ^{WP 6.9.1}

protected function categories_dropdown( $post_type ) {
	global $cat;

	/**
	 * Filters whether to remove the 'Categories' drop-down from the post list table.
	 *
	 * @since 4.6.0
	 *
	 * @param bool   $disable   Whether to disable the categories drop-down. Default false.
	 * @param string $post_type Post type slug.
	 */
	if ( false !== apply_filters( 'disable_categories_dropdown', false, $post_type ) ) {
		return;
	}

	if ( is_object_in_taxonomy( $post_type, 'category' ) ) {
		$dropdown_options = array(
			'show_option_all' => get_taxonomy( 'category' )->labels->all_items,
			'hide_empty'      => 0,
			'hierarchical'    => 1,
			'show_count'      => 0,
			'orderby'         => 'name',
			'selected'        => $cat,
		);

		echo '<label class="screen-reader-text" for="cat">' . get_taxonomy( 'category' )->labels->filter_by_item . '</label>';

		wp_dropdown_categories( $dropdown_options );
	}
}