gmp_mul
(PHP 4 >= 4.0.4, PHP 5)
gmp_mul — Multiply numbers
说明
resource gmp_mul
( resource $a
, resource $b
)
Multiplies a by b and returns the result.
参数
- a
-
A number that will be multiplied by b .
It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
- b
-
A number that will be multiplied by a .
It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
返回值
A GMP number resource.
范例
Example#1 gmp_mul() example
<?php
$mul = gmp_mul("12345678", "2000");
echo gmp_strval($mul) . "\n";
?>
上例将输出：
24691356000
