<div id="container" style="height: 600px; width: 900px"></div>

var cats = [];
var data = [];
$.get("http://test.controlcash.ru/get.php", function(resp){
  for (i=0; i<resp.length; i++) {
    cats.push(resp[i].x);
    data.push(resp[i].y);
  }
}).done(function() {
   chart.xAxis[0].setCategories(cats);
   chart.series[0].setData(data);
})

var chart = new Highcharts.Chart({
  chart: {
    renderTo: 'container',
    marginBottom: 80
  },
  xAxis: {
    labels: {
      rotation: 90
    }
  },
  series: [{
    data: [0]
  }]
});

var cats = [];
var data = [];
$.get("http://test.controlcash.ru/get.php", function(resp){
  for (i=0; i<resp.length; i++) {
    cats.push(resp[i].x);
    data.push(resp[i].y);
  }
}).done(function() {
   chart.xAxis[0].setCategories(cats);
   chart.series[0].setData(data);
})

var chart = new Highcharts.Chart({
  chart: {
    renderTo: 'container',
    marginBottom: 80
  },
  xAxis: {
    labels: {
      rotation: 90
    }
  },
  series: [{
    data: [0]
  }]
});

<?php
    $db = mysqli_connect("db_host", "db_user", "db_pass", "db_name");
    if ($result = mysqli_query($db, "select name, click from chart")) {
        while($obj = $result->fetch_object()){
            $array[]=array("x"=>$obj->name, "y"=>(int)$obj->click);
        }
        /* очищаем результирующий набор */
        mysqli_free_result($result);
    }
    mysqli_close($db);

    $ar_js = json_encode($array);
    header("HTTP/1.0 200 OK");
    header('Content-type: application/json; charset=utf-8');
    header("Cache-Control: no-cache, must-revalidate");
    header("Expires: Mon, 26 Jul 2017 05:00:00 GMT");
    header("Pragma: no-cache");

    echo $ar_js;
    ?>