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/* Get user info. */
global $current_user, $wp_roles;
//get_currentuserinfo(); //deprecated since 3.1


$post_id        = $_GET['post_id'];
$user_id        = get_current_user_id();
$current_user   = wp_get_current_user();

$avatarArr         = get_field('avatar', 'user_'. $user_id ); //Using ACF
$avatarTbn         = $avatarArr['sizes']['thumbnail'];
$user_email        = $current_user->user_email;
$user_firstname    = $current_user->user_firstname;
$display_name      = $current_user->display_name;