Question

您好我想发送一封包含php代码的电子邮件。我有以下脚本计算：

<script type="text/javascript"> 
window.onload = function () {
    var total_of_order= <?php echo $order_total ?>;
    var extra_costs= 38;
    var total = Math.ceil(parseInt(total_of_order) - extra_costs);
    $('calculateTotal').innerHTML = total;
    } 
 </script>

<div id="calculateTotal"></div>

我如何将其编码为纯PHP？样的？

<?php echo $extra_costs; $extra_costs= "38";?>
<?php echo $order_total ?>
<?php echo $total = Math.ceil(parseInt(order_total) - extra_costs);?>

你可以看到我是最糟糕的程序员，有人能帮帮我吗？

dfasf

Answer 1

使用ceil功能，不带Math.前缀。此外，由于您在PHP中进行计算，因此可以直接在<div>中输出结果，而无需任何JavaScript。

<div id="calculateTotal">
<?php
    $order_total = ...; //Defined previously, not included in your question
    $extra_costs = 38;
    echo ceil($order_total -  $extra_costs);
?>
</div>

Answer 2

只需删除Math.

即可

<?php echo $extra_costs; $extra_costs= "38";?>
<?php echo $order_total ?>
<?php echo ceil(order_total - extra_costs);?>

Answer 3

<?php  

$extra_costs= 38;

$total = ceil($order_total) - $extra_costs;

?>

<div id="calculateTotal"><?php echo $total ?></div>

Answer 4

<?php

$extra_costs = 38;
$total = ceil($order_total - $extra_costs);

?>

<script type="text/javascript">
    $('calculateTotal').innerHTML = '<?php=$total?>';
</script>

从javascript计算的数学PHP

4 个答案: