How can PHP developers optimize their code to prevent unintended changes to database records?

PHP developers can optimize their code to prevent unintended changes to database records by using prepared statements with parameterized queries. This helps prevent SQL injection attacks and ensures that user input is properly sanitized before being executed as a query. 

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

// Prepare a SQL query using a parameterized query
$stmt = $pdo->prepare("UPDATE users SET email = :email WHERE id = :id");

// Bind parameters to the query
$stmt->bindParam(':email', $email);
$stmt->bindParam(':id', $id);

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

Keywords

SQL injection prepared statements PDO data validation input sanitization

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