Get current user id

Question

I need to print the user's id into this array but it doesn't seem to be working. I have tried all sorts of things from $user->ID to $user_id to no avail. I am trying to get the value from my functions.php Any help would be greatly appreciated!

Here what's in my php function:

$user_page = get_queried_object();
$user_id = $user_page->data->ID;
$args = array(
        'post_type' => 'listings',
        'post_status'    => 'publish',
        'meta_query' => array(
            array(
                'key' => 'stm_car_user',
                'value' => $user_id
            )
        )
    );

$query = new WP_Query($args);

I'm sorry if my question is a little vague, here is what I am trying to achieve I don't want to get the id of the currently logged in user, I want to get the id of the user that the information is on, I am displaying the user's posts on their profiles and I need their id's displayed dynamically for each profile, you get me? I hope this clarifies things...

Answer 1

The answer to your question is literally the title with underscores instead of spaces:

$user_id = get_current_user_id();

https://developer.wordpress.org/reference/functions/get_current_user_id/

Answer 2

If I'm not wrong it should be

$user_page->ID

Also you can check

get_queried_object_id()

Answer 3

Here is the example, this is display all users in subscribers role.

$subscribers = get_users( [ 'role__in' => [ 'subscriber' ] ] );
// Array of WP_User objects.
foreach ( $subscribers as $user ) {
    echo '<span>' . $user->ID . '</span>';
}

Answer 4

If you use an author.php file in your theme then it would automatically get the posts from that author.

https://codex.wordpress.org/Author_Templates#Which_Template_File_is_Used.3F

That way you don't need to manually code your own and wp core code to link to author profiles would work without any modifications.