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PHP recursive function to find factorial

WBOYOriginal: 2016-07-25 08:54:061597browse

function demo($a)
{
if($a > 1)
{
$r=$a*demo($a-1);
}else
{
$r=$a;
}
return $r;
}
$a=6;
echo $a."The value of the factorial".demo($a);
?>

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The display result of php recursive function to find factorial:

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PHP recursive function to find factorial

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