<?php
function fact($x)
{
$factorial = 1;
for ($i=2; $i < $x; $i++) {
$factorial = gmp_mul($factorial, $i);
}
return $factorial;
}
echo gmp_strval(fact(1000)) . "\n";
?>
gmp_mul
(PHP 4 >= 4.0.4, PHP 5)
gmp_mul — Multiply numbers
Beskrivelse
resource gmp_mul
( resource
$a
, resource $b
)
Multiplies a by b
and returns the result.
Parametre
-
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.
Returnerings Værdier
A GMP number resource.
Eksempler
Eksempel #1 gmp_mul() example
<?php
$mul = gmp_mul("12345678", "2000");
echo gmp_strval($mul) . "\n";
?>
The above example will output:
24691356000
add a note
