PHP Program to Find Factorial of a Number

In this post I am going to describe the PHP Program which tell us how to find Factorial of a number .Factorial of a number is the product of an integer and all the integers below it eg Factorial of 4 is 4*3*2*1=24 24 is the Factorial of 4.

	$number= $_POST['number'];
	echo "Factorial of the number is ".$fact;
		<form action="" method='POST'>
		<label for="number">Please Enter a Number</label>
		<input type="text" name="number" value="">
		<input type="submit" value="Done" name="submit">

Program Output:
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