Factorial Program in PHP Using Recursive Function
In this tutorial, we are going to see how to write a factorial program in PHP using recursive function. Factorial of a number is the product of all integers between 1 and itself. In programming, a recursive function is a function that calls itself when it is executed. This allows the function to repeat itself multiple times, producing the result at the end of each iteration. Here is an example of a recursive function.
Factorial Program in PHP Using Recursive Function
<?php
function fact($n){
if($n <= 1){
return 1;
}
else{
return $n * fact($n - 1);
}
}
$n = 5;
$f = fact($n);
echo "Factorial of $n is $f";
?>
<?php
function fact($n){
if($n <= 1){
return 1;
}
else{
return $n * fact($n - 1);
}
}
$n = 5;
$f = fact($n);
echo "Factorial of $n is $f";
?>
<?php
function fact($n){
if($n <= 1){
return 1;
}
else{
return $n * fact($n - 1);
}
}
$n = 5;
$f = fact($n);
echo "Factorial of $n is $f";
?>
Output:
Factorial of 5 is 120
See also : Factorial in PHP Using For Loop
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- Factorial in PHP Using For Loop
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