What are the advantages of using PDO or mysqli over the deprecated mysql_* functions in PHP, and how can developers transition to these newer methods?

The advantages of using PDO or mysqli over the deprecated mysql_* functions in PHP include improved security, support for prepared statements, and the ability to work with multiple database types. To transition to these newer methods, developers should update their code to use either PDO or mysqli functions for interacting with databases. 

// Using PDO to connect to a database
$dsn = 'mysql:host=localhost;dbname=database_name';
$username = 'username';
$password = 'password';

try {
    $pdo = new PDO($dsn, $username, $password);
    echo "Connected to database successfully";
} catch (PDOException $e) {
    echo "Connection failed: " . $e->getMessage();
}

Keywords

PDO mysqli mysql_* deprecated transition

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