PHP 手冊
上一頁 |  | 下一頁

# floor

(PHP 3, PHP 4 , PHP 5)

floor -- Round fractions down

## Description

float floor ( float value)

Returns the next lowest integer value by rounding down value if necessary. The return value of floor() is still of type float because the value range of float is usually bigger than that of integer.

示範 1.floor() example

`<?php echo floor(4.3); // 4 echo floor(9.999); // 9 ?>`

See also ceil() and round().

上一頁 | 最開頭 | 下一頁
expm1 | 上一層 | fmod