wordpress Wordpress通过登录名获取用户ID

Wordpress get user id by login name

提问by fabbrillo

How do i get the user id from user login name in wordpress?

如何从wordpress中的用户登录名获取用户ID？

采纳答案by Doug Neiner

By using get_userdatabylogin:

通过使用get_userdatabylogin：

$user = get_userdatabylogin('loginname');
if($user){
   echo $user->ID;
}

Example:

例子：

$user = get_userdatabylogin('admin');
if($user) echo $user->ID; // Outputs 1

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UPDATE: the function get_userdatabyloginhas been deprecated, and replaced with get_user_by(). Refer to Dalen's solution to this question.

更新：该函数get_userdatabylogin已被弃用，并替换为get_user_by(). 参考Dalen对这个问题的解答。

回答by Dalen

get_userdatabyloginis now deprecated, it is possible to get the same result via

get_userdatabylogin现在已弃用，可以通过以下方式获得相同的结果

get_user_by

get_user_by

example :

例子 ：

$user = get_user_by('login','loginname');
if($user)
{
   echo $user->ID;
}

linkto the ticket about this change

链接到有关此更改的票证

回答by TanViet

You also can use get_current_user_id()

您也可以使用get_current_user_id()

<?php
    $user_id = get_current_user_id();
    echo "ID User : ".$user_id ;
    if ($user_id == 0) {
        echo 'You are currently not logged in.';
    } else {
        echo 'You are logged in as user '.$user_id;
    }
?>