PHP5中文手册·Multiply numbers -- 追寻梦想＞编程乐园＞PHP 编程

resource gmp_mul ( resource $a , resource $b )

Multiplies a by b and returns the result.

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.

A GMP number resource.

Example#1 gmp_mul() example


<?php
$mul = gmp_mul("12345678", "2000");
echo gmp_strval($mul) . "\n";
?>

上例将输出：

24691356000


	PHP5中文手册 gmp_mod gmp_neg GMP PHP Manual 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 gmp_mod gmp_neg GMP PHP Manual