a function to clean arrays with empty values

clean_empty_values.php

<?php
 /**
  * Remove keys with empty values.
  * @param array $array
  *
  * @return array
  */
function clean_empty_values(array $array) {
  return array_filter($array, function ($item) {
    return empty($item) ? FALSE : TRUE;
  }, ARRAY_FILTER_USE_BOTH);
}