Are there any potential security risks to consider when implementing dynamic dropdown menus in PHP?

One potential security risk to consider when implementing dynamic dropdown menus in PHP is the possibility of SQL injection attacks if user input is not properly sanitized. To mitigate this risk, always use prepared statements or parameterized queries when querying the database to prevent malicious SQL code from being injected. 

// Example of using prepared statements to prevent SQL injection
$pdo = new PDO("mysql:host=localhost;dbname=mydatabase", "username", "password");

$stmt = $pdo->prepare("SELECT id, name FROM products WHERE category = :category");
$stmt->bindParam(':category', $_POST['category']);
$stmt->execute();

while ($row = $stmt->fetch()) {
    echo "<option value='" . $row['id'] . "'>" . $row['name'] . "</option>";
}

Keywords

SQL injection cross-site scripting input validation secure coding practices prepared statements

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