PHP

sum two numbers in php

<?php  
$x=10;  
$y=20;  
$z = $x + $y;  
echo "Sum of x and y : ". $z;  
?>

Write a php program to perform sum of two numbers

 <?php 
$x=10; 
$y=10; 
$z=$x+$y; 
echo "result is",$z; 
?> 

How to sum 2 numbers in php.

<?php
  $i = 1;
  $j = 2;
 $a = $i + $j;
echo "The sum of i and j will be" . $a;
?>