is_user_member_of_blog

函数
is_user_member_of_blog ( $user_id = 0, $blog_id = 0 )
参数
  • (int) $user_id Optional. The unique ID of the user. Defaults to the current user.
    Required:
  • (int) $blog_id Optional. ID of the blog to check. Defaults to the current site.
    Required:
返回值
  • (bool)
定义位置
相关方法
get_users_of_blogadd_user_to_blogadd_existing_user_to_blogadd_new_user_to_blogis_user_option_local
引入
-
弃用
-

is_user_member_of_blog是一个WordPress函数,它检查给定的用户是否是指定博客的成员。它接收两个参数,用户ID和博客ID,如果用户是博客的成员,则返回布尔值true,否则返回false。

找出一个用户是否是某个博客的成员。

function is_user_member_of_blog( $user_id = 0, $blog_id = 0 ) {
	global $wpdb;

	$user_id = (int) $user_id;
	$blog_id = (int) $blog_id;

	if ( empty( $user_id ) ) {
		$user_id = get_current_user_id();
	}

	// Technically not needed, but does save calls to get_site() and get_user_meta()
	// in the event that the function is called when a user isn't logged in.
	if ( empty( $user_id ) ) {
		return false;
	} else {
		$user = get_userdata( $user_id );
		if ( ! $user instanceof WP_User ) {
			return false;
		}
	}

	if ( ! is_multisite() ) {
		return true;
	}

	if ( empty( $blog_id ) ) {
		$blog_id = get_current_blog_id();
	}

	$blog = get_site( $blog_id );

	if ( ! $blog || ! isset( $blog->domain ) || $blog->archived || $blog->spam || $blog->deleted ) {
		return false;
	}

	$keys = get_user_meta( $user_id );
	if ( empty( $keys ) ) {
		return false;
	}

	// No underscore before capabilities in $base_capabilities_key.
	$base_capabilities_key = $wpdb->base_prefix . 'capabilities';
	$site_capabilities_key = $wpdb->base_prefix . $blog_id . '_capabilities';

	if ( isset( $keys[ $base_capabilities_key ] ) && 1 == $blog_id ) {
		return true;
	}

	if ( isset( $keys[ $site_capabilities_key ] ) ) {
		return true;
	}

	return false;
}

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