<?php
$num1 = 10;
$num2 = 5;
$sum = $num1 + $num2;
$diff = $num1 - $num2;
$product = $num1 * $num2;
$quotient = $num1 / $num2;
echo "Sum: " . $sum . "<br>";
echo "Difference: " . $diff . "<br>";
echo "Product: " . $product . "<br>";
echo "Quotient: " . $quotient . "<br>";
?>