链接是WP提供的能在网站侧边栏展示我们网站链接的功能，今天我们来详细介绍一下链接小工具。
WordPress链接小工具使用介绍
在网站【后台-外观-小工具】中找到链接小工具，将它拖到想要展示的侧边栏中。
设置选项：
1.选择要显示的链接的分类（点击WordPress链接管理查看如何添加分类）
2.选择链接的排序依据（按链接标题、链接评级、链接ID、随机排序）
3.是否显示链接头像
4.是否显示链接名称
5.是否显示链接描述
6.是否显示链接评级
7.设置显示的链接数量
WordPress链接小工具前端展示
WordPress链接小工具源码介绍
源码位置：wp-includes\widgets\class-wp-widget-links.php
源代码：(since 4.4.0)
__( 'Your blogroll' ),
'customize_selective_refresh' => true,
);
parent::__construct( 'links', __( 'Links' ), $widget_ops );
}
/**
* Outputs the content for the current Links widget instance.
*
* @since 2.8.0
* @access public
*
* @param array $args Display arguments including 'before_title', 'after_title',
* 'before_widget', and 'after_widget'.
* @param array $instance Settings for the current Links widget instance.
*/
public function widget( $args, $instance ) {
$show_description = isset($instance['description']) ? $instance['description'] : false;
$show_name = isset($instance['name']) ? $instance['name'] : false;
$show_rating = isset($instance['rating']) ? $instance['rating'] : false;
$show_images = isset($instance['images']) ? $instance['images'] : true;
$category = isset($instance['category']) ? $instance['category'] : false;
$orderby = isset( $instance['orderby'] ) ? $instance['orderby'] : 'name';
$order = $orderby == 'rating' ? 'DESC' : 'ASC';
$limit = isset( $instance['limit'] ) ? $instance['limit'] : -1;
$before_widget = preg_replace( '/id="[^"]*"/', 'id="%id"', $args['before_widget'] );
$widget_links_args = array(
'title_before' => $args['before_title'],
'title_after' => $args['after_title'],
'category_before' => $before_widget,
'category_after' => $args['after_widget'],
'show_images' => $show_images,
'show_description' => $show_description,
'show_name' => $show_name,
'show_rating' => $show_rating,
'category' => $category,
'class' => 'linkcat widget',
'orderby' => $orderby,
'order' => $order,
'limit' => $limit,
);
/**
* Filters the arguments for the Links widget.
*
* @since 2.6.0
* @since 4.4.0 The `$instance` parameter was added.
*
* @see wp_list_bookmarks()
*
* @param array $widget_links_args An array of arguments to retrieve the links list.
* @param array $instance The settings for the particular instance of the widget.
*/
wp_list_bookmarks( apply_filters( 'widget_links_args', $widget_links_args, $instance ) );
}
/**
* Handles updating settings for the current Links widget instance.
*
* @since 2.8.0
* @access public
*
* @param array $new_instance New settings for this instance as input by the user via
* WP_Widget::form().
* @param array $old_instance Old settings for this instance.
* @return array Updated settings to save.
*/
public function update( $new_instance, $old_instance ) {
$new_instance = (array) $new_instance;
$instance = array( 'images' => 0, 'name' => 0, 'description' => 0, 'rating' => 0 );
foreach ( $instance as $field => $val ) {
if ( isset($new_instance[$field]) )
$instance[$field] = 1;
}
$instance['orderby'] = 'name';
if ( in_array( $new_instance['orderby'], array( 'name', 'rating', 'id', 'rand' ) ) )
$instance['orderby'] = $new_instance['orderby'];
$instance['category'] = intval( $new_instance['category'] );
$instance['limit'] = ! empty( $new_instance['limit'] ) ? intval( $new_instance['limit'] ) : -1;
return $instance;
}
/**
* Outputs the settings form for the Links widget.
*
* @since 2.8.0
* @access public
*
* @param array $instance Current settings.
*/
public function form( $instance ) {
//Defaults
$instance = wp_parse_args( (array) $instance, array( 'images' => true, 'name' => true, 'description' => false, 'rating' => false, 'category' => false, 'orderby' => 'name', 'limit' => -1 ) );
$link_cats = get_terms( 'link_category' );
if ( ! $limit = intval( $instance['limit'] ) )
$limit = -1;
?>
id="get_field_id('images'); ?>" name="get_field_name('images'); ?>" />
id="get_field_id('name'); ?>" name="get_field_name('name'); ?>" />
id="get_field_id('description'); ?>" name="get_field_name('description'); ?>" />
id="get_field_id('rating'); ?>" name="get_field_name('rating'); ?>" />
感觉本站内容不错，读后有收获？小额赞助
还可以分享文章给好友：
