How can PHP developers ensure that the output of code stored in a database is accurately represented without unintended transformations?

To ensure that the output of code stored in a database is accurately represented without unintended transformations, PHP developers can use prepared statements with parameter binding to safely retrieve data from the database without risking SQL injection attacks or unintended transformations.

// Establish a database connection
$pdo = new PDO('mysql:host=localhost;dbname=my_database', 'username', 'password');

// Prepare a SQL statement with a placeholder for the data
$stmt = $pdo->prepare("SELECT code FROM my_table WHERE id = :id");

// Bind the parameter to the placeholder
$stmt->bindParam(':id', $id, PDO::PARAM_INT);

// Execute the statement
$stmt->execute();

// Fetch the data without any transformations
$result = $stmt->fetch(PDO::FETCH_ASSOC);

// Output the code
echo $result['code'];