The below program gives the sum of two variables x and y. The PHP echo statement is used to output the text and sum value to the screen. In a similar way, codes can be written to get a sum of multiple variables in PHP.
<!DOCTYPE html> <html> <body> <?php $txt1 = "Sum of x and y is:"; $x = 1234; $y = 4321; echo "<h3>" . $txt1 . "</h3>"; echo $x + $y; ?> </body> </html>
Sum of x and y is: 5555