What are the potential security risks associated with using outdated MySQL functions in PHP for database interactions?

Using outdated MySQL functions in PHP for database interactions can expose your application to security risks such as SQL injection attacks and data manipulation. To mitigate these risks, it is recommended to use parameterized queries or prepared statements to interact with the database, as they help prevent malicious SQL injection attacks.

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

// Prepare a statement to insert data into the database
$stmt = $pdo->prepare("INSERT INTO table_name (column1, column2) VALUES (:value1, :value2)");

// Bind parameters to the statement
$stmt->bindParam(':value1', $value1);
$stmt->bindParam(':value2', $value2);

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