乘法数学不起作用？ [英] multiplication math not working ?

问题描述

hi group -


我在一个函数中有这个 - 所以我刚把它从函数中移出

以获得可读性。


有人可以告诉我为什么这不会返回结果：

n1次n2


正如我所说 - 为了便于阅读，我把它从功能中取出：

在我的php文件中：


$ number_percent =" 25";

echo" history [''order_total'']是。$ history [''order_total'']。"< br />" ;;

echo" number_percent是。$ number_percent。< br />" ;;

$ total =（（$ history [''order_total'']）* $ number_percent）;

echo" total is" .total。"< br />" ;;


这是浏览器中的输出：

历史[''order_total'']是$ 241.47

number_percent是25

总计是0


为什么？任何建议或指示将不胜感激！

hi group -

I had this in a function - so I''ve just moved this out of the function
for readabilty.

Can someone please tell me WHY does this not return the result of :
n1 times n2

As I said - I took it out of the function just for readability :
In my php file :

$number_percent="25";
echo "history[''order_total''] is ".$history[''order_total'']."<br />";
echo "number_percent is ".$number_percent."<br />";
$total=(($history[''order_total''])*$number_percent);
echo "total is ".$total."<br />";

And here is the output in the browser :
history[''order_total''] is $241.47
number_percent is 25
total is 0

WHY ? Any advice or pointers would be much appreciated!

推荐答案

number_percent =" 25";

echo " history [''order_total'']是"。

number_percent="25";
echo "history[''order_total''] is ".

history [''order_total'']。"< br />";

echonumber_percent is。

history[''order_total'']."<br />";
echo "number_percent is ".

number_percent。"< br />" ;;

number_percent."<br />";

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