Iterative way of finding factorial of a given number
<?php
function fact($number)
{
$factorial = 1;
for($k=1;$k&<=$number;$k++)
{
$factorial = $factorial *$k;
}
return $factorial;
}
echo "Factorial ".fact(5);
?>
Recursive way of finding factorial of a given number
<?php
function fact($number)
{
if($number<=1)
{return 1;}
else
{return $number*factorial($number-1);}
}
echo "Factorial ".fact(5);
?>