<?php
$current_user = wp_get_current_user();
$current_id = $current_user->ID;
if($current_id == 0) {
  $rc = 1;
  return false;
}

$res = [
  'user_nicename' => $current_user->data->user_nicename,
  'user_phone' => get_user_meta($current_id, 'user_phone', true),
  'user_email' => get_user_meta($current_id, 'user_email', true),
  'user_address' => [
    'address1' => get_user_meta($current_id, 'address1', true),
    'address2' => get_user_meta($current_id, 'address2', true),
    'address3' => get_user_meta($current_id, 'address3', true),
    'address4' => get_user_meta($current_id, 'address4', true),
  ],
  'address_current' => get_user_meta($current_id, 'address_current', true)
];