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).
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.
Input : "16497863358" Output : 16497863358 Input : "-16497863358" Output : 16497863358
Below programs illustrate the use of gmp_abs() function in PHP :
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