1<?php 2 3/** 4 * @var string $x 5 * @var string $y 6 * @var string $z 7 */ 8 9?> 10<input type="text" name="<?= e($x) ?>" class="d-none" aria-label="field1" value="ok"> 11<input type="text" name="<?= e($y) ?>" class="d-none" aria-label="field2" value="<?= e($z) ?>"> 12 13<script> 14 document.getElementsByName(<?= json_encode($x) ?>)[0].value = document.getElementsByName(<?= json_encode($y) ?>)[0].value; 15</script> 16