(PHP 4 >= 4.0.4, PHP 5, PHP 7)
Random number
GMP gmp_random ([ int $limiter = 20 ] )
Generate a random number. The number will be between zero and the number of bits per limb multiplied by limiter. If limiter is negative, negative numbers are generated.
A limb is an internal GMP mechanism. The number of bits in a limb is not static, and can vary from system to system. Generally, the number of bits in a limb is either 16 or 32, but this is not guaranteed.
Parameters:
limiter
The limiter.
Either a GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or a numeric string provided that it is possible to convert the latter to a number.
Returns:
A random GMP number.
Examples:
gmp_random() example
<?php $rand1 = gmp_random(1); // random number from 0 to 1 * bits per limb $rand2 = gmp_random(2); // random number from 0 to 2 * bits per limb echo gmp_strval($rand1) . "\n"; echo gmp_strval($rand2) . "\n"; ?>
The above example will output:
1915834968 8642564075890328087
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