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PHP - Manual: bcfloor - 互联网笔记

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PHP官方手册 - 互联网笔记

PHP - Manual: bcfloor

2025-04-27

bcfloor

(PHP 8 >= 8.4.0)

bcfloorRound down arbitrary precision number

说明

bcfloor(string $num): string

Returns the next lowest integer value by rounding down num if necessary.

参数

num
The value to round.

返回值

Returns a numeric string representing num rounded down to the nearest integer.

错误/异常

This function throws a ValueError if num is not a well-formed BCMath numeric string.

示例

示例 #1 bcfloor() example

<?php
var_dump
(bcfloor('4.3'));
var_dump(bcfloor('9.999'));
var_dump(bcfloor('-3.14'));
?>

以上示例会输出:

string(1) "4"
string(1) "9"
string(2) "-4"

参见

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官方地址:https://www.php.net/manual/en/function.bcfloor.php

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