PHP GMP Functions Complete Reference

The GMP function uses arbitrary-length integers to perform mathematical operations. The GMP function contains the GMP number as an argument. 

Example:  Program to perform the division of GMP numbers when numeric strings as GMP numbers are passed as arguments.

PHP

<?php
// PHP program to perform division of
// GMP numbers passed as arguments

// strings as GMP numbers
$num1 = "-6";
$num2 = "2";

// calculates the quotient when
// $num1 is divided by $num2
$quo = gmp_div_q($num1, $num2);

echo $quo;
?>

Output:

-3

The complete list of GMP functions are given below:

PHP GMP Function	Description
gmp_abs()	Calculate the absolute value of a GMP number
gmp_add()	It is used to add two GMP numbers.
gmp_clrbit()	The gmp_clrbit() function sets the bit at a specified index in a GMP number to 0.
gmp_cmp()	Compare two GMP numbers.
gmp_com()	Calculate the one’s complement of a GMP number
gmp_div_q()	Perform the division of GMP numbers(
gmp_div_qr()	The division operation between two GMP numbers
gmp_div_r()	Performs the division operation between two GMP numbers
gmp_divexact()	Check whether a GMP number
gmp_export()	That exports to a binary string.
gmp_fact()	Calculate the factorial of a GMP number
gmp_gcd()	Calculate the GCD of 2 GMP numbers
gmp_gcdext()	Calculates the GCD and  and multipliers of a given equation
gmp_hamdist()	Find the hamming distance between two GMP numbers
gmp_import()	That imports a GMP numb
gmp_intval()	Converts a GMP number to an integer.
gmp_invert()	Find the modular inverse of a GMP number
gmp_jacobi()	Computes the Jacobi symbol of two GMP numbers
gmp_legendre()	Computes the Legendre symbol of two GMP numbers
gmp_mod()	Find the modulo of a GMP number(
gmp_mul()	It is used to multiply two GMP numb
gmp_neg()	Returns the negative of a GMP number
gmp_nextprime()	Calculate the prime number just greater than a given GMP number
gmp_perfect_square()	Checks if the given GMP number
gmp_popcount()	Find the population count of a GMP number
gmp_pow()	Calculate the power raised to a number of a GMP number and an integer
gmp_prob_prime()	Check how much the possibility of a given GMP number
gmp_random_bits()	Generates a random number.
gmp_random_range()	Generated lies between the range min to max.
gmp_random_seed()	Sets the RNG to see
gmp_root()	Returns the integer part of the N-th root of a GMP number
gmp_rootrem()	Calculate the nth root of a GMP number (GNU Multiple Precision: For large numbers)
gmp_scan0() Fun	It is used to scan “0” in a GMP numb
gmp_scan1()	It is used to scan “1” in the GMP number
gmp_setbit()	Set the bit index in the given $num.
gmp_sign()	Checks the sign of a given GMP number
gmp_sqrt()	Calculate the square root of a GMP number
gmp_sqrtrem()	Calculate the square root of a GMP number
gmp_strval()	Returns the string value of a GMP number.
gmp_sub()	Returns the subtraction of the two GMP numbers.
gmp_testbit()	Checks if the specified bit of a given GMP number
gmp_xor()	Calculate the XOR of 2 GMP numbers
gmp_random()	Random numbers will be between zero and the number of bits per limb