How can PHP developers ensure compatibility with different database engines by using PDO for database connectivity?

PHP developers can ensure compatibility with different database engines by using PDO for database connectivity. PDO (PHP Data Objects) is a database access layer that provides a consistent interface for accessing different database systems. By using PDO, developers can write code that is independent of the specific database engine being used, allowing for easier migration between databases in the future. 

try {
    $pdo = new PDO('mysql:host=localhost;dbname=mydatabase', 'username', 'password');
    // Use $pdo for database operations
} catch (PDOException $e) {
    echo 'Connection failed: ' . $e->getMessage();
}

Keywords

PHP PDO database connectivity compatibility database engines

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