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PHP - Manual: fdiv

2024-12-24

fdiv

(PHP 8)

fdivDivides two numbers, according to IEEE 754

说明

fdiv(float $num1, float $num2): float

Returns the floating point result of dividing the num1 by the num2. If the num2 is zero, then one of INF, -INF, or NAN will be returned.

Note that in comparisons, NAN will never == or ===, any value, including itself.

参数

num1

The dividend (numerator)

num2

The divisor

返回值

The floating point result of num1/num2

范例

示例 #1 Using fdiv()

<?php
var_dump
(fdiv(5.71.3)); // float(4.384615384615385)
var_dump(fdiv(42)); // float(2)
var_dump(fdiv(1.00.0)); // float(INF)
var_dump(fdiv(-1.00.0)); // float(-INF)
var_dump(fdiv(0.00.0)); // float(NAN)
?>

参见

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

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