Factorial in PHP Using For Loop
In this tutorial, we are going to see how to write a PHP function to calculate the factorial of a given number in PHP using for loop. The factorial of a number is the product of all integers between 1 and itself.
Factorial in PHP Using For Loop
<?php
function fact($n){
$f = 1;
for ($i = 1; $i <= $n; $i++){
$f = $f * $i;
}
return $f;
}
$n = 5;
$f = fact($n);
echo "Factorial of $n is $f";
?>
Output:
Factorial of 5 is 120
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