Php 从username-buddyPress获取用户id

我需要通过在输入字段中搜索来获取用户的id。假设我需要一个用户'adre'的id（实际上是33）。任何帮助都将不胜感激

// this way i can get username with user id.
$user_ID = 33;
$user = new BP_Core_User( $user_ID );
$user_array = $user->profile_data;
echo $user_nicename=$user_array['user_nicename']; // adre

// now i need to get user id by username.
//echo bp_displayed_user_id();

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尝试此

get\u userdatabylogin

$user = get_userdatabylogin('admin');
var_dump($user);
echo $user->ID; // prints the id of the user

还是这个

 <?php $user = get_user_by( $field, $value ); ?> 

    Default: None