Simple Factorial Program:- We can get factorial of any number
function factorial($n) { $fact=1; for($i=$n; $i>=1;$i--) { $fact=$fact*$i; } return $fact; } echo factorial(4) //Output:- 24 echo factorial(5) //Output:- 120
Factorial Program through recursion of any number
function Recu_factorial($number) { if($number==0) { return 1; } return $number * Recu_factorial($number - 1); } echo Recu_factorial(4); //Output:- 24 echo Recu_factorial(5); //Output:- 120