<div id="placeholder" style="width:600px;height:300px;"></div>

<p>Graph here</p>

 <script type="text/javascript">


var data = [
   <? foreach ($all_users as $user): ?>
    ["day","<?= count($all_users); ?>"],
  <? endforeach; ?>
  ];

$.plot($("#placeholder"), data, {
        yaxis: {
    min: 0,
    max: 100
        },
        xaxis: { mode: "time",minTickSize: [0, "day"],
                min: (new Date("<?= $from_date; ?>")).getTime(),
                max: (new Date("<?= $until_date; ?>")).getTime()
},
        "lines": {"show": "true"},
        "points": {"show": "true"},
        clickable:true,hoverable: true
});