CODE FOLLOWS

<?php
session_start();

// Define card values
$cardValues = [
    '2' => 2, '3' => 3, '4' => 4, '5' => 5, '6' => 6, '7' => 7, '8' => 8, '9' => 9,
    'J' => 10, 'Q' => 10, 'K' => 10, 'A' => 11
];

$playerScore = 100;

// Function to calculate hand value
function calculateHandValue($hand) {
    global $cardValues;
    $value = 0;
    $aces = 0;

    foreach ($hand as $card) {
        $cardRank = explode(' ', $card)[0];
        $value += $cardValues[$cardRank];

        // Count the number of Aces
        if ($cardRank == 'A') {
            $aces++;
        }
    }

    while ($value > 21 && $aces) {
        $value -= 10;
        $aces--;
    }

    return $value;
}

// Function to initialize deck
function initializeDeck() {
    $deck = [];
    foreach (['Hearts', 'Diamonds', 'Clubs', 'Spades'] as $suit) {
        foreach (array_merge(range(2, 9), ['J', 'Q', 'K', 'A']) as $rank) {
            $deck[] = $rank . ' of ' . $suit;
        }
    }
    shuffle($deck);
    return $deck;
}

// Reset game on "Play Again" action
if (isset($_POST['action']) && $_POST['action'] == 'Play Again') {
    unset($_SESSION['deck']);
    unset($_SESSION['playerHand']);
    unset($_SESSION['dealerHand']);
    unset($_SESSION['gameStatus']);
    $_SESSION['gameStatus'] = 'playing';
    $_SESSION['deck'] = initializeDeck();
    $_SESSION['playerHand'] = [array_pop($_SESSION['deck']), array_pop($_SESSION['deck'])];
    $_SESSION['dealerHand'] = [array_pop($_SESSION['deck']), array_pop($_SESSION['deck'])];
    $_SESSION['betAmount'] = 5; // Reset bet to minimum
}

// Initialize the game if not already initialized
if (!isset($_SESSION['deck'])) {
    $_SESSION['deck'] = initializeDeck();
    $_SESSION['playerHand'] = [array_pop($_SESSION['deck']), array_pop($_SESSION['deck'])];
    $_SESSION['dealerHand'] = [array_pop($_SESSION['deck']), array_pop($_SESSION['deck'])];
    $_SESSION['gameStatus'] = 'playing';
    $_SESSION['betAmount'] = 5; // Set initial bet amount to minimum
}

// Handle player actions
if ($_SERVER['REQUEST_METHOD'] == 'POST' && $_SESSION['gameStatus'] == 'playing') {
    $action = $_POST['action'];

    if ($action == 'Hit') {
        $_SESSION['playerHand'][] = array_pop($_SESSION['deck']);
    } elseif ($action == 'Stand') {
        $_SESSION['gameStatus'] = 'dealerPlaying';
    } elseif ($action == 'Quit') {
        $_SESSION['gameStatus'] = 'quit';
    } elseif (isset($_POST['changeBet'])) {
        $betChange = (int)$_POST['changeBet'];
        $newBet = $_SESSION['betAmount'] + $betChange;
        if ($newBet >= 5) {
            $_SESSION['betAmount'] = $newBet;
        }
    }

    if (calculateHandValue($_SESSION['playerHand']) > 21) {
        $_SESSION['gameStatus'] = 'playerBusted';
    }
}

// Dealer's turn (reveals cards one at a time)
if ($_SESSION['gameStatus'] == 'dealerPlaying') {
    while (calculateHandValue($_SESSION['dealerHand']) < 17) {
        $_SESSION['dealerHand'][] = array_pop($_SESSION['deck']);
    }

    if (calculateHandValue($_SESSION['dealerHand']) > 21) {
        $_SESSION['gameStatus'] = 'dealerBusted';
    } elseif (calculateHandValue($_SESSION['playerHand']) > calculateHandValue($_SESSION['dealerHand'])) {
        $_SESSION['gameStatus'] = 'playerWins';
    } elseif (calculateHandValue($_SESSION['playerHand']) < calculateHandValue($_SESSION['dealerHand'])) {
        $_SESSION['gameStatus'] = 'dealerWins';
    } else {
        $_SESSION['gameStatus'] = 'tie';
    }
}

?>
    <div class="game">
        <?php include('includes/blackjackheader.php');
    if ($_SESSION['gameStatus'] == 'playing') {
        echo "<div class='GameArea'>";
        echo "<div class='DeckArea'>";
        echo "<img class='card' src='svgfiles/cardback.svg' alt='Deck'>";
        echo "</div>";
        echo "<div class='PlayArea'>";
        echo "<div class='Dealer'>";
        echo "<h3>";
        // Display dealer's first card
        $dealerFirstCard = $_SESSION['dealerHand'][0];
        $dealerFirstCardDetails = explode(' ', $dealerFirstCard);
        $dealerFirstCardRank = strtolower($dealerFirstCardDetails[0]);
        $dealerFirstCardSuit = strtolower($dealerFirstCardDetails[2]);

        echo "<div class='cards'>";
        echo "<img class='card' src='svgfiles/{$dealerFirstCardRank}_of_{$dealerFirstCardSuit}.svg' alt='{$dealerFirstCard}'>";

        // Display dealer's second card only if the player has finished (dealer's turn)
        if ($_SESSION['gameStatus'] == 'dealerPlaying' || $_SESSION['gameStatus'] == 'dealerBusted' || $_SESSION['gameStatus'] == 'playerWins' || $_SESSION['gameStatus'] == 'tie') {
            $dealerSecondCard = $_SESSION['dealerHand'][1];
            $dealerSecondCardDetails = explode(' ', $dealerSecondCard);
            $dealerSecondCardRank = strtolower($dealerSecondCardDetails[0]);
            $dealerSecondCardSuit = strtolower($dealerSecondCardDetails[2]);
            echo "<img class='card' src='svgfiles/{$dealerSecondCardRank}_of_{$dealerSecondCardSuit}.svg' alt='{$dealerSecondCard}'>";
        } else {
            // Display back of the card if the dealer is still playing
            echo "<img class='card' src='svgfiles/cardback.svg' alt='Card Back'>";
        }
        echo "</div>";
        echo "(Value: $dealerFirstCardRank + ?)</h3>"; // Display dealer score
        echo "</div>";
        echo "<hr><div class='Player'>";
        echo "<h3>Player ";
        echo "<div class='cards'>";
        foreach ($_SESSION['playerHand'] as $card) {
            $cardDetails = explode(' ', $card);
            $cardRank = strtolower($cardDetails[0]);
            $cardSuit = strtolower($cardDetails[2]);

            echo "<img class='card' src='svgfiles/{$cardRank}_of_{$cardSuit}.svg' alt='{$card}'>";
        }
        echo "</div>";
        echo "(Value: " . calculateHandValue($_SESSION['playerHand']) . ")</h3>"; // Display player score
        echo "</div>";
    }

    // Show result only after the game is finished (when it's not 'playing')
    if ($_SESSION['gameStatus'] != 'playing') {
        echo "<div class='GameArea'>";
        echo "<div class='DeckArea'>";
        echo "<img class='card' src='svgfiles/cardback.svg' alt='Deck'>";
        echo "</div>";
        echo "<div class='PlayArea'>";
        echo "<div class='Dealer'>";
        echo "<h3>Dealer";
        echo "<div class='cards'>";
        foreach ($_SESSION['dealerHand'] as $card) {
            $cardDetails = explode(' ', $card);
            $cardRank = strtolower($cardDetails[0]);
            $cardSuit = strtolower($cardDetails[2]);

            echo "<img class='card' src='svgfiles/{$cardRank}_of_{$cardSuit}.svg' alt='{$card}'>";
        }
        echo "</div>";
        echo "(Value: " . calculateHandValue($_SESSION['dealerHand']) . ")</h3>";
        echo "</h3></div>";
        echo "<h2>Game Over</h2>";
        echo "<div class='Player'>";
        echo "<h3>Player";
        echo "<div class='cards'>";
        foreach ($_SESSION['playerHand'] as $card) {
            $cardDetails = explode(' ', $card);
            $cardRank = strtolower($cardDetails[0]);
            $cardSuit = strtolower($cardDetails[2]);

            echo "<img class='card' src='svgfiles/{$cardRank}_of_{$cardSuit}.svg' alt='{$card}'>";
        }
        echo "</div>";
        echo "(Value: " . calculateHandValue($_SESSION['playerHand']) . ")</h3>";
        echo "</h3></div>";
        echo "</div>";
        echo "</div>";
        if ($_SESSION['gameStatus'] == 'playerBusted') {
            echo "<h4>Player Busted! You lose!</h4>";

        } elseif ($_SESSION['gameStatus'] == 'dealerBusted') {
            echo "<h4>Dealer Busted! You win!</h4>";
        } elseif ($_SESSION['gameStatus'] == 'playerWins') {
            echo "<h4>Player Wins!</h4>";
        } elseif ($_SESSION['gameStatus'] == 'dealerWins') {
            echo "<h4>Dealer Wins!</h4>";
        } elseif ($_SESSION['gameStatus'] == 'tie') {
            echo "<h4>It's a Tie!</h4>";
        }
    }

    ?>

    <div class="buttons">
        <form method="POST">
            <?php if ($_SESSION['gameStatus'] == 'playing') { ?>
                <button type="submit" name="action" value="Hit">HIT 🃏</button>
                <button type="submit" name="action" value="Stand">STAND ✋</button>
                <button type="submit" name="action" value="Quit">QUIT 🚪</button>
            <?php } else { ?>
                <button type="submit" name="action" value="Play Again">Play Again ↺</button>
            <?php } ?>
        </form>
    </div>
    </div>
</div>
<?php include('includes/footer.php');?>