In this article, We’ll write a program to generate a factorial of any number in php.

first, we understand the meaning of factorial

in mathematics, the factorial of a positive integer n, denoted by n!, is the product of all positive integers less than or equal to n.

For example:

5! = 5 * 4 * 3 * 2 * 1 = 120

Below an example:

 $number = 5;
 $fact   = 1;
 while($number > 0) {
    $fact = $fact * $number;
    $number--;
 }
  echo $fact; // Output 120

In above, we wrote a program to generate the factorial of 5 and the factorial of 5 came 120.

That’s it!. Please share your thoughts or suggestions in the comments below.