get_user_by( string $field, int|string $value )
按给字段检索用户信息
$field
(字符串) (必填) 用于检索用户的字段。id | ID | slug | 电子邮件| 登录。
$value
(int | string) (必需) $ field的值。用户ID,子弹,电子邮件地址或登录名。
返回#返回
(WP_User | false) WP_User对象成功,失败时为false。
示例


//瑞课邮箱验证示例
<?php $author_user=get_user_by('ID',get_the_author_meta('ID'));if($author_user->user_email):?>
已验证用户
<?php endif;?>
//示例一
$user = get_user_by( 'email', 'user@example.com' );
echo 'User is ' . $user->first_name . ' ' . $user->last_name;
//示例二
$author_obj = get_user_by('id', 1);
object(WP_User)#96 (7) {
["data"]=>
object(stdClass)#95 (10) {
["ID"]=>
string(1) "1"
["user_login"]=>
string(10) "superadmin"
["user_pass"]=>
string(34) "$P$Bx0Jgq6/Qw/o3A5fXcVKg4jxQr2PAB1"
["user_nicename"]=>
string(10) "superadmin"
["user_email"]=>
string(16) "user@example.com"
["user_url"]=>
string(0) ""
["user_registered"]=>
string(19) "2014-02-21 21:31:40"
["user_activation_key"]=>
string(0) ""
["user_status"]=>
string(1) "0"
["display_name"]=>
string(10) "superadmin"
}
["ID"]=>
int(1)
["caps"]=>
array(1) {
["administrator"]=>
bool(true)
}
["cap_key"]=>
string(25) "wp_capabilities"
["roles"]=>
array(1) {
[0]=>
string(13) "administrator"
}
["allcaps"]=>
array(63) {
["switch_themes"]=>
bool(true)
["edit_themes"]=>
bool(true)
["activate_plugins"]=>
bool(true)
["edit_plugins"]=>
bool(true)
["edit_users"]=>
bool(true)
["edit_files"]=>
bool(true)
["manage_options"]=>
bool(true)
["moderate_comments"]=>
bool(true)
["manage_categories"]=>
bool(true)
["manage_links"]=>
bool(true)
["upload_files"]=>
bool(true)
["import"]=>
bool(true)
["unfiltered_html"]=>
bool(true)
["edit_posts"]=>
bool(true)
["edit_others_posts"]=>
bool(true)
["edit_published_posts"]=>
bool(true)
["publish_posts"]=>
bool(true)
["edit_pages"]=>
bool(true)
["read"]=>
bool(true)
["level_10"]=>
bool(true)
["level_9"]=>
bool(true)
["level_8"]=>
bool(true)
["level_7"]=>
bool(true)
["level_6"]=>
bool(true)
["level_5"]=>
bool(true)
["level_4"]=>
bool(true)
["level_3"]=>
bool(true)
["level_2"]=>
bool(true)
["level_1"]=>
bool(true)
["level_0"]=>
bool(true)
["edit_others_pages"]=>
bool(true)
["edit_published_pages"]=>
bool(true)
["publish_pages"]=>
bool(true)
["delete_pages"]=>
bool(true)
["delete_others_pages"]=>
bool(true)
["delete_published_pages"]=>
bool(true)
["delete_posts"]=>
bool(true)
["delete_others_posts"]=>
bool(true)
["delete_published_posts"]=>
bool(true)
["delete_private_posts"]=>
bool(true)
["edit_private_posts"]=>
bool(true)
["read_private_posts"]=>
bool(true)
["delete_private_pages"]=>
bool(true)
["edit_private_pages"]=>
bool(true)
["read_private_pages"]=>
bool(true)
["delete_users"]=>
bool(true)
["create_users"]=>
bool(true)
["unfiltered_upload"]=>
bool(true)
["edit_dashboard"]=>
bool(true)
["update_plugins"]=>
bool(true)
["delete_plugins"]=>
bool(true)
["install_plugins"]=>
bool(true)
["update_themes"]=>
bool(true)
["install_themes"]=>
bool(true)
["update_core"]=>
bool(true)
["list_users"]=>
bool(true)
["remove_users"]=>
bool(true)
["add_users"]=>
bool(true)
["promote_users"]=>
bool(true)
["edit_theme_options"]=>
bool(true)
["delete_themes"]=>
bool(true)
["export"]=>
bool(true)
["administrator"]=>
bool(true)
}
["filter"]=>
NULL
}