PHP gmp_abs() Function (original) (raw)

Last Updated : 11 Jul, 2025

The gmp_abs() is an in built function in PHP which is used to calculate the absolute value of a GMP number (GNU Multiple Precision : For large numbers).Syntax :

gmp_abs( $num )

Parameters : This function accepts a GMP number as parameter as shown in the above syntax. It can be a GMP object in PHP version 5.6 and later, or a numeric string provided that it is possible to convert the latter to a number.This function calculates the absolute value of this number and returns it.Return Value : This function returns a positive GMP number which is the absolute value of the number passed as parameter. Examples:

Input : "16497863358" Output : 16497863358

Input : "-16497863358" Output : 16497863358

Below programs illustrate the use of gmp_abs() function in PHP :Program 1:

php `

`

Output:

16497863358 16497863358

Program 2:

php `

`

Output:

1897023411 1897023411

Reference: https://www.php.net/manual/en/function.gmp-abs.php