PHP中如何使用MongoDB技术？

sudo pecl install mongodb

extension=mongodb.so

//MongoDB服务器IP地址和端口号
$mongoDb_server = "192.168.0.20:27017";

//建立连接
try {
    $mongoDb_manager = new MongoDBDriverManager("mongodb://{$mongoDb_server}/");
} catch (MongoDBDriverExceptionException $e) {
    echo "Exception:".$e->getMessage();
}

//要写入的数据
$doc = array(
   'title' => 'PHP使用MongoDB技术',
   'author' => 'name',
   'date' => date('Y-m-d H:i:s')
);

//创建MongoDBDriverBulkWrite类，并设置写入数据语句
$bulk = new MongoDBDriverBulkWrite;
$_id = $bulk->insert($doc);

//执行写入操作
try {
   $mongoDb_manager->executeBulkWrite('testdb.test', $bulk);
   echo "写入成功.";
} catch (MongoDBDriverExceptionException $e) {
   echo "Exception:".$e->getMessage();
}

//创建MongoDBDriverQuery类，并设置查询语句
$filter = ['name' => 'Tom'];
$options = [
   'projection' => ['_id' => 0],
];
$query = new MongoDBDriverQuery($filter, $options);

//执行查询语句，获取结果
$cursor = $mongoDb_manager->executeQuery('testdb.test', $query);

//遍历查询结果
foreach ($cursor as $document) {
   print_r($document);
}

//创建MongoDBDriverBulkWrite类，并设置更新语句
$bulk = new MongoDBDriverBulkWrite;
$filter = ['name' => 'Lucy'];
$newObj = ['$set' => ['age' => 28]];
$bulk->update($filter, $newObj, ['multi' => false, 'upsert' => false]);

//执行更新操作
try {
   $mongoDb_manager->executeBulkWrite('testdb.test', $bulk);
} catch (MongoDBDriverExceptionException $e) {
   echo "Exception:".$e->getMessage();
}

//创建MongoDBDriverBulkWrite类，并设置删除语句
$bulk = new MongoDBDriverBulkWrite;
$filter = ['name' => 'Lucy'];
$bulk->delete($filter, ['limit' => 1]);

//执行删除操作
try {
   $mongoDb_manager->executeBulkWrite('testdb.test', $bulk);
} catch (MongoDBDriverExceptionException $e) {
   echo "Exception:".$e->getMessage();
}