How can PHP developers ensure the security of their code when allowing users to manipulate database records through a web interface?

To ensure the security of their code when allowing users to manipulate database records through a web interface, PHP developers should use prepared statements with parameterized queries to prevent SQL injection attacks. By binding user input to parameters in the query, developers can ensure that malicious SQL code cannot be injected into the database. 

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

// Prepare a SQL statement with a parameterized query
$stmt = $pdo->prepare("UPDATE records SET column1 = :value1 WHERE id = :id");

// Bind user input to parameters
$stmt->bindParam(':value1', $_POST['value1']);
$stmt->bindParam(':id', $_POST['id']);

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

Keywords

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

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