Help Debug PHP/MySQL

I am getting the following error and I can't seem to figure out why:

Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in C:\website\webdev\robert.harrison\ITEC 3280\Coffee Shop\shoppingCart.php on line 32

Many thanks!!

<?php

session_start();

$conn = mysqli_connect(//deleted these parameters for obvious reasons);
$sku = $_SESSION['sku'];
$quantity = $_POST['quantity'];
$userid = $_SESSION['name'];

if($_SESSION['name'] == ''){
    $_SESSION['signedIn'] = 'no';
    header('Location: signIn.php');
}

else if($_POST['submit'] == 'Update Cart'){

    $sql = "
        SELECT sku, quantity
        FROM cart
        WHERE userid = ".$userid."';
    ";
    
    $rs = mysqli_query($conn, $sql);
    //$num_rows = mysqli_num_rows($rs);
    
    while($row = mysqli_fetch_assoc($rs)){
    
        $quantity = $_POST[$row['sku']];
        
        $sql = "UPDATE CART
                SET quantity = '".$quantity."'
                WHERE userid = '".$userid."' AND sku = '".$row['sku']"';";
        $rs = mysqli_query($conn, $sql);
        
        $sql = "SELECT coffee_sku, coffee_name, coffee_price, quantity
            FROM coffee
            JOIN CART ON coffee_sku = sku
            WHERE userid = '".$userid."';";
        $rs = mysqli_query($conn, $sql);
        
        echo "<form action'shoppinCart.php' method='post'>";
        
        echo "<table name = 'cart'>
            <tr>
                <th>Coffee Name</th><th>Coffee Price</th><th>Quantity</th>
            </tr>";
            
        if (mysqli_num_rows($rs)== 0){
                    echo "No items are currently in your shopping cart.";
        }

        while($row = mysqli_fetch_assoc($rs)){
            echo "<tr>";
            echo "<td>". $row['coffee_name'] . "</td>";
            echo "<td>$" . $row['coffee_price'] . "</td>";
            echo "<td><input type='text' size='2' name='".$row['coffee_sku']."' value='" . $row['quantity'] . "'></td>";
            echo "</tr>";                
        }
        
        echo "<tr>
                <td></td><td></td><td><input type='submit' name='update' value='Update Cart'</td>
              </tr>";
        
        echo "</table>";
        
        echo "Displaying " . mysqli_num_rows($rs) . " items.";
        
        mysqli_close($conn);
        
        echo "</form>"
            
        }

}

else{

    
    $sql = "INSERT INTO CART
            VALUES ('".$userid."', '".$sku."', '".$quantity."');";
    $rs = mysqli_query($conn, $sql); 
    
    if(mysqli_affected_rows($conn) == 0){
        echo "Insert failed!";
    }
    
    $sql = "SELECT coffee_sku, coffee_name, coffee_price, quantity
            FROM coffee
            JOIN CART ON coffee_sku = sku
            WHERE userid = '".$userid."';";
    $rs = mysqli_query($conn, $sql);
    
    echo "<form action'shoppinCart.php' method='post'>";
    
    echo "<table name = 'cart'>
        <tr>
            <th>Coffee Name</th><th>Coffee Price</th><th>Quantity</th>
        </tr>";
        
    if (mysqli_num_rows($rs)== 0){
                echo "No items are currently in your shopping cart.";
    }

    while($row = mysqli_fetch_assoc($rs)){
        echo "<tr>";
        echo "<td>". $row['coffee_name'] . "</td>";
        echo "<td>$" . $row['coffee_price'] . "</td>";
        echo "<td><input type='text' size='2' name='".$row['coffee_sku']."' value='" . $row['quantity'] . "'></td>";
        echo "</tr>";                
    }
    
    echo "<tr>
            <td></td><td></td><td><input type='submit' name='update' value='Update Cart'</td>
          </tr>";
    
    echo "</table>";
    
    echo "Displaying " . mysqli_num_rows($rs) . " items.";
    
    mysqli_close($conn);
    
    echo "</form>"

}

    
?>