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get_userdata() WP 1.0

Retrieve user info by user ID.

This is a pluggable function, and it can be replaced by a plugin. It means that this function is defined (works) only after all plugins are loaded (included), but before this moment this function has not defined. Therefore, you cannot call this and all functions depended on this function directly from a plugin code. They need to be called on plugins_loaded hook or later, for example on init hook.

Function replacement (override) — in a plugin you can create a function with the same name, then it replace this function.

Works based on: get_user_by()
1 time — 0.000296 sec (fast) | 50000 times — 0.78 sec (very fast) | PHP 7.1.2RC1, WP 4.7.2

No Hooks.


WP_User|false. WP_User object on success, false on failure.


get_userdata( $user_id );
$user_id(int) (required)
User ID


Since 0.71 Introduced.

Code of get_userdata() WP 5.7.2

function get_userdata( $user_id ) {
	return get_user_by( 'id', $user_id );

From tag: Users (_user)

More from category: Other

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