It converts Hexadecimal to decimal

Example

<?php
echo hexdec(17);
?>

Output

23

It shows largest possible random value

Example

<?php
echo getrandmax();
?>

Output

2147483647

It returns the remainder of the division.

Example

<?php
echo fmod(4,7);
?>

Output

4

It round fractions down

Example

<?php
echo floor(1.7);
?>

Output

1

It calculates the value of E^x-1

Example

<?php
echo expm1(17);
?>

Output

24154952.753575

It calculates the exponent of e

Example

<?php
echo exp(17);
?>

Output

24154952.753575

It converts the number in degrees to the radian equivalent

Example

<?php
echo deg2rad(45);
?>

Output

0.78539816339745

It converts a decimal to octal

Example

<?php
echo decoct(17);
?>

Output

21

It converts a decimal to hexadecimal

Example

<?php
echo dechex(17);
?>

Output

11

It converts a decimal to binary

Example

<?php
echo decbin(17);
?>

Output

10001