PHP code to generate random Lotto numbers for Megabucks

<?php

// Set the number of white balls and the range of numbers for the white balls
$numWhiteBalls = 6;
$whiteBallRange = range(1, 49);

// Shuffle the white ball range
shuffle($whiteBallRange);

// Select the specified number of random white balls
$whiteBalls = array_slice($whiteBallRange, 0, $numWhiteBalls);

// Sort the white balls in ascending order
sort($whiteBalls);

// Output the selected lotto numbers
echo "White balls: " . implode(", ", $whiteBalls) . "\n";

?>

This code uses the range() function to generate an array of numbers for the white balls (1 to 49), and then shuffles the array using the shuffle() function. The code then uses the array_slice() function to select the specified number of random white balls from the shuffled array, and the sort() function to sort the white balls in ascending order. Finally, the code uses the implode() function to output the selected lotto numbers as a string.