问题描述
我有一个价格列表，逗号为小数点，点为千位分隔符.
I have a list of prices with a comma for a decimal point and a dot as the thousand separator.
一些例子:
12,30
116,10
1.563,14
12,30
116,10
1.563,14
这些格式来自第三方.我想将它们转换为浮点数并将其添加在一起.
These come in this format from a third party. I want to convert them to floats and add them together.
做到这一点的最佳方法是什么? number_format 似乎不适用于此格式，并且 str_replace 似乎有点过头了，因为我必须对每个数字重复一次以上.
What is the best way to do this? number_format doesn't seem to work with this format, and str_replace seems like overkill, as I have to do it more that once on each number.
有更好的方法吗?谢谢.
Is there are better way? Thanks.
推荐答案
使用str_replace()删除圆点并不算过分.
Using str_replace() to remove the dots is not overkill.
$string_number = '1.512.523,55';
// NOTE: You don't really have to use floatval() here, it's just to prove that it's a legitimate float value.
$number = floatval(str_replace(',', '.', str_replace('.', '', $string_number)));
// At this point, $number is a "natural" float.
print $number;
几乎可以肯定，这是执行此操作所需的CPU最少的方法，而且很有可能即使您使用一些高级功能也可以做到这一点.
This is almost certainly the least CPU-intensive way you can do this, and odds are that even if you use some fancy function to do it, that this is what it does under the hood.
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