如何利用PHP开发买菜系统的商品销量统计与报表功能？

SELECT Goods_name, SUM(sales_quantity) AS total_sales
FROM sales
GROUP BY goods_name

<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
  google.charts.load('current', {'packages':['bar']});
  google.charts.setOnLoadCallback(drawChart);

  function drawChart() {
    var data = google.visualization.arrayToDataTable([
      ['商品名称', '销售数量'],
      <?php
        // 在此处获取数据库查询结果，并按照相应的格式输出
        echo "['商品A', 20],";
        echo "['商品B', 30],";
        echo "['商品C', 50],";
      ?>
    ]);

    var options = {
      chart: {
        title: '商品销量统计',
        subtitle: '每个商品的销售数量统计',
      }
    };

    var chart = new google.charts.Bar(document.getElementById('chart_div'));
    chart.draw(data, google.charts.Bar.convertOptions(options));
  }
</script>
<div id="chart_div" style="width: 100%; height: 500px;"></div>