PHP Program factorial number program

Factorial number 

Factorial number 

1] Factorial numbers "!" It is indicated by the icon.

2]  means that all negative numbers are less than 
   f or equal to the product of the given positive numbers

factorial number program in php

Example :-

<?php

$number=9;

$factorial=1;

for($a=$number;$a>=1;$a--)

{

    $factorial=$factorial*$a;

}

echo "Factorial of $number is $factorial";

?>

factorial number program in php

Output :-

factorial number using form php

Example :-

<form method="post">

    Enter The Number <br><br>

    <input type="number" name="number"id="number"><br><br>

    <input  type ="submit" name="submit" value="submit">

</form>

<?php

if($_POST){

    $factorial = 1;

    $number= $_POST['number'];

    echo "Factorial of $number;<br><br>";

    for ($i=1;$i<=$number; $i++){

        $factorial=$factorial*$i;      

    }

    echo $factorial;

}

?>

Output :-

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