如何使用PHP将小数舍入到下一位

Question

I know about php's built in round() function, which return 2 for 1.6 . But it return 1 for 1.1 . I want to return the next number if the given number has a fractional part. For example, I want to return 2 for 1.1 , or 1.01 , or even 1.0001 . But I don't want to return the same for 1.0 , which may return 1 itself. How can I achieve this in PHP?

Answer 1

Take a look at php's ceil() .

echo ceil(4.3);    // 5
echo ceil(9.999);  // 10
echo ceil(-3.14);  // -3

Answer 2

Use ceil() to round up to the next number

echo ceil(1.0); // will echo 1

http://www.php.net/manual/en/function.ceil.php