User Contactmethods

/*-------------------------------------------------------
    Use functions.php
--------------------------------------------------------*/
add_filter('user_contactmethods', 'theme_user_contactmethods');
function theme_user_contactmethods($cm){
    $cm['facebook']     = __('Facebook', 'verum');
    $cm['twitter']      = __('Twitter', 'verum');
    $cm['pinterest']    = __('Pinterest', 'verum');
    $cm['google-plus']  = __('Google Plus', 'verum');
    return $cm;
}


/*-------------------------------------------------------
    Use page.php
--------------------------------------------------------*/
  <?php 
      $theme_user_cm = wp_get_user_contact_methods();
      foreach($theme_user_cm as $theme_user_cm_key => $theme_user_cm_value){
          $theme_cm_link = get_user_meta(get_the_author_meta('ID'), $theme_user_cm_key, true);
          if($theme_cm_link){
      ?>
          <a href="<?php echo esc_url($theme_cm_link); ?>">
              <i class="fa fa-<?php echo esc_attr($theme_user_cm_key); ?>"></i>
          </a>
      <?php
          }
      }
  ?>