What are common content management systems (CMS) written in PHP and MySQL?

Common content management systems (CMS) written in PHP and MySQL include WordPress, Joomla, and Drupal. These CMS platforms allow users to easily create and manage websites without needing to write code from scratch. They provide a user-friendly interface for content creation, editing, and publishing.

// Example PHP code snippet for connecting to a MySQL database using PDO
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";

try {
    $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    echo "Connected successfully";
} catch(PDOException $e) {
    echo "Connection failed: " . $e->getMessage();
}