Should I use PDO or mysqli for connecting to a SQL database in PHP when handling form submissions?

When handling form submissions in PHP and connecting to a SQL database, it is recommended to use PDO (PHP Data Objects) over mysqli due to its flexibility, security features, and support for multiple database systems. PDO provides a consistent interface for accessing different databases, prepared statements to prevent SQL injection, and supports transactions for handling database operations. 

// Using PDO to connect to a SQL database and handle form submissions
try {
    $pdo = new PDO("mysql:host=localhost;dbname=mydatabase", "username", "password");
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    
    // Retrieve form data
    $name = $_POST['name'];
    $email = $_POST['email'];
    
    // Prepare and execute SQL statement
    $stmt = $pdo->prepare("INSERT INTO users (name, email) VALUES (:name, :email)");
    $stmt->bindParam(':name', $name);
    $stmt->bindParam(':email', $email);
    $stmt->execute();
    
    echo "Form submitted successfully!";
} catch(PDOException $e) {
    echo "Error: " . $e->getMessage();
}

Keywords

PDO mysqli SQL database form submissions PHP

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