verify has array's children are empty

isEmptyArray.php

<?php

function isntEmpty($x)
{
  $key = array_keys($x)[0];

  if(!empty($x[$key])) {
  return $x;
  }
}

$t = [
  'id' => '',
  'term' => ''
];

$tt = [
  'id' => '',
  'term' => ''
];

$consent = [
  'item1' => $t,
  'item2' => $tt
];

$filteredData = array_filter($consent,"isntEmpty");
print_r($filteredData);