PHP必備的高效能文字資料庫：為你的應用程式提供穩定性和效能

//通过打开文件来初始化数据库
$db = dba_open('users.ffdb', 'n', 'flatfile');

//添加一个新用户
$key = dba_insert('John Doe', 'jdoe@gmail.com', $db);

//获取一个用户
$user = dba_fetch($key, $db);

//更新用户
$dba_replace($key, 'Jane Doe', 'jane@gmail.com', $db);

//删除用户
$dba_delete($key, $db);

//连接到数据库
$db = new SQLite3('database.db');

//添加一个用户
$db->exec("INSERT INTO users (name, email) VALUES ('John Doe', 'jdoe@gmail.com')");

//获取用户列表
$results = $db->query("SELECT * FROM users");
while ($row = $results->fetchArray()) {
   echo $row['name'] . " - " . $row['email'] . "
";
}

//更新用户
$db->exec("UPDATE users SET name='Jane Doe', email='jane@gmail.com' WHERE id=1");

//删除用户
$db->exec("DELETE FROM users WHERE id=1");

//连接到MongoDB数据库
$client = new MongoDBClient("mongodb://localhost:27017");

//获取MongoDB中的集合
$collection = $client->users->Information;

//添加一个用户
$insertOne = $collection->insertOne([
    'name' => 'John Doe',
    'email' => 'jdoe@gmail.com'
]);

//获取用户列表
$cursor = $collection->find();
foreach ($cursor as $document) {
    echo $document['name'] . " - " . $document['email'] . "
";
}

//更新用户
$updateResult = $collection->updateOne(
    ['name' => 'John Doe'],
    ['$set' => ['name' => 'Jane Doe', 'email' => 'jane@gmail.com']]
);

//删除用户
$deleteResult = $collection->deleteOne(['_id' => $insertOne->getInsertedId()]);