了解用户是否是特定博客的成员。
原型
is_user_member_of_blog( int $user_id, int $blog_id )
参数
$user_id
(int)
(Optional)
用户的唯一ID。默认为当前用户。
$blog_id
(int)
(Optional)
要检查的博客的ID。默认为当前站点。
返回值
(bool)
源文件
路径:wp-includes/user.php
<?php
...
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 ] ) && $blog_id == 1 ) {
return true;
}
if ( isset( $keys[ $site_capabilities_key ] ) ) {
return true;
}
return false;
}
...
?>
其他
英文文档:https://developer.wordpress.org/reference/functions/is_user_member_of_blog/