PHP | gmp_random_bits() Function

The gmp_random_bits() function is an inbuilt function in PHP which generates a random number. The random number will thus be between the range 0 and (2 * bits) - 1. Here bits must be greater than 0, and the maximum value of bits is restricted by available memory. Here GMP refers (GNU Multiple Precision) which is for large numbers. Syntax :

GMP gmp_random_bits ( int $bits )

Parameters : The above function accepts a single parameter as mentioned above and described below :

• $bits : IT accepts only one parameter This parameter can be a GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or we are also allowed to pass a numeric string provided that it is possible to convert that string to a number.

Return Value : The function returns a random GMP number. Examples:

Input : bits = 3
Output : 3

Input : bits = 5
Output : 15

Note: Output will vary every time on execution

Program 1 : Output:

10

Program 2 : Output:

15

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