update_user_option( int $user_id, string $option_name, mixed $newvalue, bool $global = false )

使用全局博客功能更新用户选项。
Update user option with global blog capability.

目录锚点：#说明#参数#源码#笔记

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说明（Description）

用户选项和用户元数据一样，只是它们支持全局博客选项。如果’global’参数为false（默认为false），它将在选项名称前面加上WordPress表前缀。如果$newvalue为空，则删除用户选项。

参数（Parameters）

源码（Source）

/**
 * Update user option with global blog capability.
 *
 * User options are just like user metadata except that they have support for
 * global blog options. If the 'global' parameter is false, which it is by default
 * it will prepend the WordPress table prefix to the option name.
 *
 * Deletes the user option if $newvalue is empty.
 *
 * @since 2.0.0
 *
 * @global wpdb $wpdb WordPress database object for queries.
 *
 * @param int    $user_id     User ID.
 * @param string $option_name User option name.
 * @param mixed  $newvalue    User option value.
 * @param bool   $global      Optional. Whether option name is global or blog specific.
 *                            Default false (blog specific).
 * @return int|bool User meta ID if the option didn't exist, true on successful update,
 *                  false on failure.
 */
function update_user_option( $user_id, $option_name, $newvalue, $global = false ) {
	global $wpdb;

	if ( !$global )
		$option_name = $wpdb->get_blog_prefix() . $option_name;

	return update_user_meta( $user_id, $option_name, $newvalue );
}

笔记（Notes）

基本示例