【ワードプレス】ウィジット作成のテンプレート

wp-widget-template.php

<?php
add_action('widgets_init', function () {
	register_widget("My_Widget");
	
	class My_Widget extends WP_Widget
	{
		/**
		 * PHP5 constructor.
		 *
		 * @since 2.8.0
		 * @access public
		 *
		 * @param string $id_base         Optional Base ID for the widget, lowercase and unique. If left empty,
		 *                                a portion of the widget's class name will be used Has to be unique.
		 * @param string $name            Name for the widget displayed on the configuration page.
		 * @param array  $widget_options  Optional. Widget options. See {@see wp_register_sidebar_widget()} for
		 *                                information on accepted arguments. Default empty array.
		 * @param array  $control_options Optional. Widget control options. See {@see wp_register_widget_control()}
		 *                                for information on accepted arguments. Default empty array.
		 */
		public function __construct()
		{
			parent::__construct(
				'id_base',
				'name',
				array('widget_options'),
				array('control_options')
			);
		}
		
		/**
		 * Echo the widget content.
		 *
		 * Subclasses should over-ride this function to generate their widget code.
		 *
		 * @since 2.8.0
		 * @access public
		 *
		 * @param array $args     Display arguments including before_title, after_title,
		 *                        before_widget, and after_widget.
		 * @param array $instance The settings for the particular instance of the widget.
		 */
		public function widget($args, $instance) {
			// $instance['title];
		}
		
		/**
		 * Update a particular instance.
		 *
		 * This function should check that $new_instance is set correctly. The newly-calculated
		 * value of `$instance` should be returned. If false is returned, the instance won't be
		 * saved/updated.
		 *
		 * @since 2.8.0
		 * @access public
		 *
		 * @param array $new_instance New settings for this instance as input by the user via
		 *                            {@see WP_Widget::form()}.
		 * @param array $old_instance Old settings for this instance.
		 * @return array Settings to save or bool false to cancel saving.
		 */
		public function update($new_instance, $old_instance){}
		
		/**
		 * Output the settings update form.
		 *
		 * @since 2.8.0
		 * @access public
		 *
		 * @param array $instance Current settings.
		 * @return string Default return is 'noform'.
		 */
		public function form($instance){
			// $this->get_field_name('title');
		}
	}
});