设置全局用户变量。

原型

setup_userdata( int $for_user_id = '' )

描述

由wp_set_current_user()用于反向compat。将来可能会被弃用。

参数

$for_user_id (int) (Optional)  用于设置全局数据的用户ID。

源文件

路径:wp-includes/user.php

<?php
...
function setup_userdata($for_user_id = '') {
	global $user_login, $userdata, $user_level, $user_ID, $user_email, $user_url, $user_identity;
	if ( '' == $for_user_id )
		$for_user_id = get_current_user_id();
	$user = get_userdata( $for_user_id );
	if ( ! $user ) {
		$user_ID = 0;
		$user_level = 0;
		$userdata = null;
		$user_login = $user_email = $user_url = $user_identity = '';
		return;
	}
	$user_ID    = (int) $user->ID;
	$user_level = (int) $user->user_level;
	$userdata   = $user;
	$user_login = $user->user_login;
	$user_email = $user->user_email;
	$user_url   = $user->user_url;
	$user_identity = $user->display_name;
}
...
?>

其他

英文文档:https://developer.wordpress.org/reference/functions/setup_userdata/