Call to Undefined Function get_currentuserinfo() Error in WordPress调用未定义函数get_currentuserinfo（）错误在WordPress
In WordPress在WordPress blog publishing博客出版 system, there may be error been logged in Apache web server error_log file or been displayed on web pages which looks like the following line:系统，可能有错误被记录在Apache Web服务器error_log文件或网页上已经像下面这行看起来显示：
Fatal error: Call to undefined function: get_currentuserinfo() in /wordpress/wp-content/plugins/plugin.php致命错误：调用未定义的函数：get_currentuserinfo（）在/ WordPress的/可湿性粉剂内容/插件/ plugin.php
The undefined get_currentuserinfo function error normally happens in a poorly coded plugin.未定义get_currentuserinfo函数的错误通常发生在编码插件欠佳。 If the user deactivate the plug-in that causes the error, the issue will be fixed, resolved and go away.如果用户停用插件，导致错误，这个问题将是固定的，解决和消失。 The error happens because $userdata or $user_id global variables become null, not defined or of empty value after the plugin is initiated, included, hooked and loaded.错误发生，因为用户数据或$ $ user_ID的全局变量成为空，没有定义或空值后，启动插件，包括上钩，加载。
The User ID and User Data (which User ID is part of) is globally-available var when in the WordPress admin pages.用户ID和用户数据（即用户名的一部分），是全球可用的无功时，在WordPress管理页面。 To resolve and fix the undefined get_currentuserinfo() function error, reset and scope the variable to global in the plugin before the beginning of the function which calling get_currenctuserinfo().要解决和确定未定义get_currentuserinfo（）函数错误，复位和范围在插件变量全球前函数调用get_currenctuserinfo开始（）。
To set $userdata or $user_id vars to global scope, add in one of the following line into the beginning of the plugin PHP file:要设置用户数据或$ $ user_ID的瓦尔全球范围内，在下列行一个添加到插件的PHP文件的开头：
$userdata = $GLOBALS['userdata']; $用户数据= $全局['用户数据'];
or,或，
global $userdata;全球$用户数据;
For user id, use “global $user_id;” instead.对于用户名，请使用“全球$ user_ID的;”代替。
Update: Above trick does not work in new WordPress version, try the更新：以上伎俩无法在新的WordPress版本，请尝试 fix undefined function get_currentuserinfo() fatal error修复未定义函数get_currentuserinfo（）致命错误 guide instead.指南，而不是。
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