PHP 字符串，小数点到数字
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PHP string with decimals to number
提问by Ilya Karnaukhov
So when I try the following:
因此，当我尝试以下操作时：
$a = '1.00';
$b = '1.01';
if($a < $b){
print 'ok';
}
This works fine. But when I retrieve these variables from an xml file. the strings are EXACTLY the same, but for some reason, the if function doesn't work right. So I assume I have to convert the strings to a number. But when I do so, the decimals get removed.
这工作正常。但是当我从 xml 文件中检索这些变量时。字符串完全相同，但由于某种原因，if 函数无法正常工作。所以我假设我必须将字符串转换为数字。但是当我这样做时，小数会被删除。
Is my assumption correct? If so, how do i solve it?
我的假设正确吗？如果是这样，我该如何解决？
If not, what's the problem?
如果不是，有什么问题？
Thank you!
谢谢！
回答by Geert
$a = (float) $a;
$b = (float) $b;
Related reading: http://php.net/manual/en/language.types.type-juggling.php
相关阅读：http: //php.net/manual/en/language.types.type-juggling.php
回答by Ilya Karnaukhov
Found the answer by googling :)
通过谷歌搜索找到答案:)
floatval($string);
