1<input type="text" name="<?= e($x) ?>" class="d-none" aria-label="field1" value="ok"> 2<input type="text" name="<?= e($y) ?>" class="d-none" aria-label="field2" value="<?= e($z) ?>"> 3 4<script> 5 document.getElementsByName(<?= json_encode($x) ?>)[0].value = document.getElementsByName(<?= json_encode($y) ?>)[0].value; 6</script> 7