What are the differences between using mysql, mysqli, and PDO in PHP for database interactions, and which one is recommended for beginners?

When interacting with databases in PHP, developers have the option to use mysql, mysqli, or PDO extensions. Mysql extension is deprecated and should not be used due to security vulnerabilities. Mysqli is an improved version of mysql with better security features and support for prepared statements. PDO is a more versatile option that supports multiple databases and provides a consistent interface for database interactions. 

// Using PDO for database interactions
try {
    $pdo = new PDO("mysql:host=localhost;dbname=my_database", "username", "password");
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    $stmt = $pdo->prepare("SELECT * FROM users WHERE id = :id");
    $stmt->bindParam(':id', $id);
    $stmt->execute();

    $result = $stmt->fetch(PDO::FETCH_ASSOC);
    
    // Process the result
} catch(PDOException $e) {
    echo "Error: " . $e->getMessage();
}

Keywords

mysql mysqli PDO database interactions beginners

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