PHP reference

fdiv

Divides numbers without raising an error on division by zero.

Syntax

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

Parameter	Type	Description
$num1	float	The dividend.
$num2	float	The divisor.

floatThe quotient; `INF`, `-INF` or `NAN` on division by zero.

Division by zero:

<?php
 
var_dump(fdiv(10, 4));
var_dump(fdiv(10, 0));
var_dump(is_nan(fdiv(0, 0)));

Output:

float(2.5)
float(INF)
bool(true)

The regular / operator throws DivisionByZeroError on division by zero.

Numbers and maths — PHP's maths functions — rounding, number formatting, random numbers and the precision of fractions.