在高图中回显日期(d-m-Y)

echo date(d-m-Y) in highchart

正在处理高位图 -> 饼图

当我尝试回显日期 (d-m-Y) 时,它会减去而不是打印 dd-mm-yyyy

data: [
    <?php foreach($result as $value):?>
        {
            name: <?php $d= strtotime($value['created_at']); echo date('d-m-Y', $d);?>,
            y: <?php echo round($calc_quality = $value['goodcount']/($value['totalcount'] + 0.0001 )*100,2); ?>
        },
    <?php endforeach?>
]

我想要它是 13-11-2021.Any 解决方案?

pie chart

添加“ ”解决了问题:

name: '<?php $d= strtotime($value['created_at']); echo date('d-m-Y', $d);?>',