gmp_random_bits
(PHP 5 >= 5.6.3, PHP 7, PHP 8)
gmp_random_bits — Random number
說明
Generate a random number. The number will be between
0 and (2 ** bits) - 1.
bits must greater than 0, and the maximum value is restricted by available memory.
參數
-
bits -
The number of bits.
返回值
A random GMP number.
範例
示例 #1 gmp_random_bits() example
<?php
$rand1 = gmp_random_bits(3); // random number from 0 to 7
$rand2 = gmp_random_bits(5); // random number from 0 to 31
echo gmp_strval($rand1) . "\n";
echo gmp_strval($rand2) . "\n";
?>
以上例程會輸出：
3 15