What potential pitfalls should be considered when visualizing data from a database on a website using PHP?

One potential pitfall when visualizing data from a database on a website using PHP is the risk of SQL injection attacks if user input is not properly sanitized. To prevent this, always use prepared statements with parameterized queries to safely interact with the database. 

// Connect to the database
$pdo = new PDO("mysql:host=localhost;dbname=mydatabase", "username", "password");

// Prepare a statement with a parameterized query
$stmt = $pdo->prepare("SELECT * FROM mytable WHERE id = :id");

// Bind the parameter and execute the query
$stmt->bindParam(':id', $_GET['id']);
$stmt->execute();

// Fetch and display the results
while ($row = $stmt->fetch()) {
    echo $row['column1'] . ' - ' . $row['column2'] . '<br>';
}

Keywords

SQL injection data sanitization cross-site scripting PDO prepared statements

Related Questions