How to Get the ID of Current Logged in User from WordPress!

Introducing get_current_user_id function

Since WordPress v2.0.3, developers can use a dedicated function to retrieve the current user’s ID. Before that, they need to get the whole user object first, then extract the ID from it.

get_current_user_id() function introduced to help developers write fewer lines of code when they want to retrieve the current user’s ID.

get_current_user_id function syntax

You do not need to specify anything for this function to get the current user’s ID. The function will detect the current user itself.

get_current_user_id()

After execution, the get_current_user_id() returns the current user’s ID, or if the user is not logged in, it will return 0.

get_current_user_id function example

If this example, we’ll check the current user ID, and if it is equal to what we determined (ID 1), a text message will be printed on the screen:

Another way to get the current user’s ID (Not Recommended for cleaner code)

The get_current_user_id() function is running wp_get_current_user() under the hood. You can directly get the current user with all information, then try to extract the ID from the returned WP_User object.

For a cleaner code, you better use the get_current_user_id().

If you are still interested, you can get the current user’s object from WP and then try to extract the ID from it using this code:

$targetUserId=1;

//get the current user as WP_User object
$currentUser = wp_get_current_user();

//check if current user is available with isset() and then check if it's our targeted user
if(isset($currentUser->ID) && $currentUser->ID === $targetUserId){
	//current user id is matching our target user's id
	echo "Wellcome to our website, You are a special customer to us";
}