JAVASCRIPT variable PHP

[courtlanda]

Is there any way to link JS and PHP to the PHP variable JS

I said,

<script>
$("button").on('click', function() {
  var moderate = $("#moderate option:selected").val();
  if(moderate != 'Статус') {
    location.href = "https://site.ru/admin?moderate="+ moderate;
  }
  return false;
});
<?php
$moderate = КАК УКАЗАТЬ СЮДА VAR MODERATE???
?>
</script>

[Oba22]

<script>
    $("button").on('click', function() {
      var moderate = $("#moderate option:selected").val();
      if(moderate != 'Статус') {
        location.href = "https://site.ru/admin?moderate="+ moderate;
      }
      return false;
    });
    <?php
        $moderate = htmlspecialchars($_GET['moderate']);
    ?>
</script>