Addition

<?php
	// generate two random numbers
	$number1 = rand(1, 10);
	$number2 = rand(1, 10);

	// display the HTML form
	echo "<form action='index.php' method='post'>";
	echo "$number1 + $number2 = ";
	echo "<input type='text' name='answer' />";

	// pass the numbers to the next page
	echo "<input type='hidden' name='number1' value='$number1' />";
	echo "<input type='hidden' name='number2' value='$number2' />";
	echo "<input type='submit' />";
?>

<?php
	// receive the numbers and the answer by user
	// store in variables $number1, $number2, $answer
	$number1 = $_POST['number1'];
	$number2 = $_POST['number2'];
	$answer = $_POST['answer'];

	$correct = $number1 + $number2;

	// check if the answer is correct
	if ($answer == $correct) {
		echo "Correct!";
	} else {
		echo "Wrong!";
	}
?>

Task

Create a PHP script that generates three random numbers between 1 and 10.
Display the numbers and ask the user to enter the sum of the numbers.
Check if the user's answer is correct and display the result.