PHP如何四舍五入合计

我对在PHP中使用舍入函数感到困惑，我已经在我的系统中使用PHP制作了一些计算函数，但是答案仍然不是舍入的

我希望所有的总数都是四舍五入的完成百分比

有人能帮我修复此代码吗？这是原始代码。

<?php echo $row_sr1['percent_complete'] = ($row_sr1['partial_complete'] + $row_sr1['full_complete']) / $row_sr1['appt_today'] * 100;?>

<?php echo round($row_sr1['percent_complete']),2 = ($row_sr1['partial_complete'] + $row_sr1['full_complete']) / $row_sr1['appt_today'] * 100;?>

下面是我尝试舍入但未成功的代码。

<?php echo $row_sr1['percent_complete'] = ($row_sr1['partial_complete'] + $row_sr1['full_complete']) / $row_sr1['appt_today'] * 100;?>

<?php echo round($row_sr1['percent_complete']),2 = ($row_sr1['partial_complete'] + $row_sr1['full_complete']) / $row_sr1['appt_today'] * 100;?>

---

您的舍入函数位于错误的位置

<?php
  echo $row_sr1['percent_complete'] =
         round(
           ($row_sr1['partial_complete'] + $row_sr1['full_complete']) /
             $row_sr1['appt_today'] * 100,
           2);
?>