get_current_user_id

The timeline below displays how wordpress function get_current_user_id has changed across different WordPress versions. If a version is not listed, refer to the next available version below.

WordPress Version: 6.1

//
// User option functions.
//
/**
 * Gets the current user's ID.
 *
 * @since MU (3.0.0)
 *
 * @return int The current user's ID, or 0 if no user is logged in.
 */
function get_current_user_id()
{
    if (!function_exists('wp_get_current_user')) {
        return 0;
    }
    $user = wp_get_current_user();
    return isset($user->ID) ? (int) $user->ID : 0;
}

WordPress Version: 5.4

//
// User option functions.
//
/**
 * Get the current user's ID
 *
 * @since MU (3.0.0)
 *
 * @return int The current user's ID, or 0 if no user is logged in.
 */
function get_current_user_id()
{
    if (!function_exists('wp_get_current_user')) {
        return 0;
    }
    $user = wp_get_current_user();
    return isset($user->ID) ? (int) $user->ID : 0;
}

WordPress Version: 4.9

//
// User option functions
//
/**
 * Get the current user's ID
 *
 * @since MU (3.0.0)
 *
 * @return int The current user's ID, or 0 if no user is logged in.
 */
function get_current_user_id()
{
    if (!function_exists('wp_get_current_user')) {
        return 0;
    }
    $user = wp_get_current_user();
    return isset($user->ID) ? (int) $user->ID : 0;
}

WordPress Version: 4.8

//
// User option functions
//
/**
 * Get the current user's ID
 *
 * @since MU
 *
 * @return int The current user's ID, or 0 if no user is logged in.
 */
function get_current_user_id()
{
    if (!function_exists('wp_get_current_user')) {
        return 0;
    }
    $user = wp_get_current_user();
    return isset($user->ID) ? (int) $user->ID : 0;
}

WordPress Version: 4.1

//
// User option functions
//
/**
 * Get the current user's ID
 *
 * @since MU
 *
 * @return int The current user's ID
 */
function get_current_user_id()
{
    if (!function_exists('wp_get_current_user')) {
        return 0;
    }
    $user = wp_get_current_user();
    return isset($user->ID) ? (int) $user->ID : 0;
}

WordPress Version: 7.1

//
// User option functions
//
/**
 * Get the current user's ID
 *
 * @since MU
 *
 * @uses wp_get_current_user
 *
 * @return int The current user's ID
 */
function get_current_user_id()
{
    if (!function_exists('wp_get_current_user')) {
        return 0;
    }
    $user = wp_get_current_user();
    return isset($user->ID) ? (int) $user->ID : 0;
}

WordPress Version: 3.7

//
// User option functions
//
/**
 * Get the current user's ID
 *
 * @since MU
 *
 * @uses wp_get_current_user
 *
 * @return int The current user's ID
 */
function get_current_user_id()
{
    $user = wp_get_current_user();
    return isset($user->ID) ? (int) $user->ID : 0;
}