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PHP : Function Reference : GMP Functions : gmp_mul

gmp_mul

Multiply numbers (PHP 4 >= 4.0.4, PHP 5)
resource gmp_mul ( resource a, resource b )

Example 800. gmp_mul() example

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

The above example will output:

24691356000

Code Examples / Notes » gmp_mul

06-dec-2006 09:11

<?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";
?>


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