MemberPerks mp_get_member_level

mp_get_member_level.php

<?php
// Function to get the member level
function mp_get_member_level(){

  // Get current user's ID
  $memberID = get_current_user_id();

  if( $memberID != 0 ):

    // Get member's info
    $memberInfo = get_userdata($memberID);
    $memberName = $memberInfo->first_name;
    if(empty($memberName)):
      $memberName = $memberInfo->user_login;
    endif;

    // Registration date
    $memberRegistered = $memberInfo->user_registered;
    $registrationDate = new DateTime($memberRegistered);

    // Current Date
    $currentDate = new DateTime("now", new DateTimeZone('Europe/Madrid'));

    //https://stackoverflow.com/questions/4233605/elegant-way-to-get-the-count-of-months-between-two-dates
    $memberLevel = $registrationDate->diff($currentDate)->m + ($registrationDate->diff($currentDate)->y*12) + 1;

    $output = array(
      'member_name' => $memberName,
      'member_level' => $memberLevel
    );

    return $output;

  else:
    return; // User is not logged in
  endif;
}