PHP 类型转换 float->int
鉴于此 PHP 代码:
Given this PHP code:
// total is 71.24 (float)
$value = $total * 100;
var_dump($value);
$valuecast = (int)$value;
var_dump($valuecast);
settype($value, 'int');
var_dump($value);
var_dump($value) 给出 float(7124)
var_dump($value) gives float(7124)
var_dump($valuecast) 给出 int(7123)
var_dump($valuecast) gives int(7123)
var_dump($value) 后 settype 给出 int(7123)
var_dump($value) after settype gives int(7123)
如何获得正确的类型转换?
How can I get the correct type conversion?
推荐答案
对于 float 到 int，我建议 round.这是为了迎合 IEEE 浮点不精确.
For float to int, I'd suggest round. This is to cater to IEEE float imprecision.
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