Как передать значение ползунка slider из javascript в обработчик кнопки php

$host = "localhost";
$user = "root";
$password = "1234";
$database = "data";
 
$link = mysqli_connect($host, $user, $password, $database);
 
 
<p>Price Range:<p id="amount"></p></p>
<div id="slider-range"></div>
<p>
    <form action="" method="POST">
        <input type="hidden" id="amount1">
        <input type="hidden" id="amount2">
        <input class="button" type="submit" name="submit_range" value="Send">
    </form>
</p>
 
 
<script>
    $(function() {
    $( "#slider-range" ).slider( {
    range: true,
    min: 0,
    max: 500,
    values: [ 100, 300 ],
    slide: function( event, ui ) {
    $( "#amount" ).html( "$" + ui.values[ 0 ] + " - $" + ui.values[ 1 ] );
    $( "#amount1" ).val(ui.values[ 0 ]);
    $( "#amount2" ).val(ui.values[ 1 ]);
    }
    });
    $( "#amount" ).html( "$" + $( "#slider-range" ).slider( "values", 0 ) + " - $" + $( "#slider-range" ).slider( "values", 1 ) );
    });
</script>
 
 
if(isset($_POST['submit_range']))
{
    $tp = $_POST['amount1'];
    $pr = $_POST['amount2'];
 
    echo "<p style='font-family:Arial; font-weight:bold; font-style:italic; text-align:center; width:100%; background-color:#ffffff; color:#FF0000'>".$tp."</p>";
 
    $res = mysqli_query($link, "UPDATE config SET temperature = '$tp', pressure = '$pr' WHERE id = 1");
}