Factorial program in PHP using recursive function

Exercise Description:
Write a PHP program to find factorial of a number using recursive function.

What is Recursive Function?

• A recursive function is a function that calls itself.

Factorial program in PHP using recursive function

<?php
function factorial($number) { 
 
    if ($number < 2) { 
        return 1; 
    } else { 
        return ($number * factorial($number-1)); 
    } 
}
 
echo factorial(4);
?>

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Factorial program in PHP using recursive function

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