Adding Two Number in php

Adding two numbers in php is a very simple task like you have done in other languages. You need to declare three variables or you can initialize them by assign value. like given below:

PHP Code:

1. <?php
2. //First variable initialization
3. $FirstNumber = 10;
4.  
5. //second variable initialization
6.  $SecondNumber = 20;
7.  
8. //Third variable initialization with add operation 
9.  
10. $Sum = $FirstNumber + $SecondNumber;
11.  
12. //printing the result that should be 30
13.  
14. echo "Sum of Two number is :".$Sum;
15.  
16. ?>

Now save this file with index.php inside your server's root directory. and open browser to see the result. 

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