PHP Adding Two Numbers – PHP program
In this tutorial, we will discuss the PHP Adding Two Numbers – PHP program
In this topic, we are going to learn how to write a program to add two numbers in PHP programming language
Sum of two numbers
Sum of two numbers using variables
Program 1
Addition of two numbers 25 and 50 and the output is displayed here
<?php
$n1=25;
$n2=50;
$sum=$n1+$n2;
echo "Sum: ",$sum;
?>
When the above code is executed, it produces the following result
Sum: 75
Sum of two numbers by passing input to form
Program 2
In this program, the user is asked to enter two numbers(by passing input value to form). Then two numbers are added using the + operator and the result is displayed on the screen
<html>
<head>
<title>Addition of two numbers </title>
</head>
//create html from
<form method="post">
Enter First Number:
<input type="number" name="number1" /><br><br>
Enter Second Number:
<input type="number" name="number2" /><br><br>
<input type="submit" name="submit" value="Sum">
</form>
//End HTML form
// php script
<?php
if(isset($_POST['submit']))
{
$number1 = $_POST['number1'];
$number2 = $_POST['number2'];
$sum = $number1+$number2;
//calculate sum of two numbers using + operator
echo "The sum of $number1 and $number2 is: ".$sum;
//display sum of two numbers
}
?>
//Exit
</body>
</html>
When the above code is executed, it produces the following result
Sum of two numbers by passing input to form without + operator
Program 3
In this program, the user is asked to enter two numbers(by passing input value to form). Then two numbers are added without using + operator and the result is displayed on the screen
<html>
<body>
<form> //Start html form
Enter 1st number for sum:
<input type="number" name="number1" /><br><br>
Enter 2nd number for sum:
<input type="number" name="number2" /><br><br>
<input type="submit" name="submit" value="Sum">
</form> //End form
</body>
<?php //PHP script
@$number1 = $_GET['number1'];
@$number2 = $_GET['number2'];
for($i=1; $i<=$number2; $i++)
{//calculate sum of two numbers using for loop
$number1++;
}
echo "Sum of given two numbers".$number1
//display sum of two numbers
;
//Exit
?>
</html>
When the above code is executed, it produces the following result
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