this is javascript-send-a-value.html:

<script language="JavaScript">
var Result = "11223344556677889900";
alert("Javascript Result="+Result);
location.href="php-get-a-value.php?Result=" + Result;
</script>



this is php-get-a-value.php:

<?php
$Result= $_GET['Result'];
?>

<script language="JavaScript">
alert('PHP $Result= <?= $Result ?>');
</script>