|
wpmu_new_site_admin_notification()
wp-includes/ms-functions.php
|
Notifies the Multisite network administrator that a new site was created.
|
|
wp_authenticate_application_password()
wp-includes/user.php
|
Authenticates the user using an application password.
|
|
populate_network_meta()
wp-admin/includes/schema.php
|
Creates WordPress network meta and sets the default values.
|
|
get_object_subtype()
wp-includes/meta.php
|
Returns the object subtype for a given object ID of a specific type.
|
|
wp_create_user_request()
wp-includes/user.php
|
Creates and logs a user request to perform a specific action.
|
|
wp_user_personal_data_exporter()
wp-includes/user.php
|
Finds and exports personal data associated with an email address from the user and user_meta table.
|
|
wp_media_personal_data_exporter()
wp-includes/media.php
|
Finds and exports attachments associated with an email address.
|
|
_wp_personal_data_handle_actions()
wp-admin/includes/privacy-tools.php
|
Handle list table actions.
|
|
get_user_locale()
wp-includes/l10n.php
|
Retrieves the locale of a user.
|
|
WP_REST_Users_Controller::create_item()
wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php
|
Creates a single user.
|
|
WP_REST_Users_Controller::update_item()
wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php
|
Updates a single user.
|
|
wp_authenticate_email_password()
wp-includes/user.php
|
Authenticates a user using the email and password.
|
|
get_avatar_data()
wp-includes/link-template.php
|
Retrieves default data about the avatar.
|
|
retrieve_password()
wp-includes/user.php
|
Handles sending a password retrieval email to a user.
|
|
wp_validate_auth_cookie()
wp-includes/pluggable.php
|
Validates authentication cookie.
|
|
get_userdata()
wp-includes/pluggable.php
|
Retrieves user info by user ID.
|
|
get_profile()
wp-includes/deprecated.php
|
Retrieve user data based on field.
|
|
WP_Query::get_queried_object()
wp-includes/class-wp-query.php
|
Retrieves the currently queried object.
|
|
WP_Query::get_posts()
wp-includes/class-wp-query.php
|
Retrieves an array of posts based on query variables.
|
|
check_password_reset_key()
wp-includes/user.php
|
Retrieves a user row based on password reset key and login.
|
|
username_exists()
wp-includes/user.php
|
Determines whether the given username exists.
|
|
email_exists()
wp-includes/user.php
|
Determines whether the given email exists.
|
|
wp_authenticate_username_password()
wp-includes/user.php
|
Authenticates a user, confirming the username and password are valid.
|
|
get_userdatabylogin()
wp-includes/pluggable-deprecated.php
|
Retrieve user info by login name.
|
|
get_user_by_email()
wp-includes/pluggable-deprecated.php
|
Retrieve user info by email.
|
|
wp_setcookie()
wp-includes/pluggable-deprecated.php
|
Sets a cookie for a user who just logged in. This function is deprecated.
|
|
get_pages()
wp-includes/post.php
|
Retrieves an array of pages (or hierarchical post type items).
|
|
is_user_spammy()
wp-includes/ms-functions.php
|
Determines whether a user is marked as a spammer, based on user login.
|
|
wpmu_signup_blog_notification()
wp-includes/ms-functions.php
|
Sends a confirmation request email to a user when they sign up for a new site. The new site will not become active until the confirmation link is clicked.
|
|
wpmu_signup_user_notification()
wp-includes/ms-functions.php
|
Sends a confirmation request email to a user when they sign up for a new user account (without signing up for a site at the same time). The user account will not become active until the confirmation link is clicked.
|
|
is_site_admin()
wp-includes/ms-deprecated.php
|
Determine if user is a site admin.
|
|
get_user_details()
wp-includes/ms-deprecated.php
|
Deprecated functionality to retrieve user information.
|
|
get_user_id_from_string()
wp-includes/ms-deprecated.php
|
Get a numeric user ID from either an email address or a login.
|
|
check_comment()
wp-includes/comment.php
|
Checks whether a comment passes internal checks to be allowed to add.
|
Sample response of
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
}
Default usage
I always prefer to check if the variable ($user) is empty or not before echoing any properties of the $user object:
$user = get_user_by( ’email’, ‘user@example.com’ );
if ( ! empty( $user ) ) {
echo ‘User is ‘ . $user->first_name . ‘ ‘ . $user->last_name;
}
This is to keep things clean and prevent error messages and warnings.
If you want to get the user id from user loginname.
To obtain user’s email via this, you have to use “user_email” property, not just “email”.
$user = get_user_by('login', $username);if ($user) {
$details['name'] = $user->first_name . ' ' . $user->last_name;
$details['email'] = $user->user_email;
};
is case sensitive. Which means
would not match any users with like
Top ↑
Feedback
It looks like this is no longer case sensitive on at least the
loginoremailsearch options. — By Wade —Find user by id / email / username