php mongodb操作类 带几个简单的例子

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核心代码

1 && $auto_balance) { $prior_server_num = rand(1,$mongo_server_num); $rand_keys = array_rand($mongo_server,$mongo_server_num); $mongo_server_str = $mongo_server[$prior_server_num-1]; foreach ($rand_keys as $key) { if ($key != $prior_server_num - 1) { $mongo_server_str .= ',' . $mongo_server[$key]; } } } else { $mongo_server_str = implode(',',$mongo_server); } } else { $mongo_server_str = $mongo_server; } try { $this->mongo = new MongoClient($mongo_server,array('connect'=>$connect)); } catch (MongoConnectionException $e) { $this->error = $e->getMessage(); return false; } }

/**

  • 连接NewMongodb server
  • 参数:无
  • 返回值:
  • 成功:true
  • 失败:false
    */
    public function connect()
    {
    try {
    $this->mongo->connect();
    return true;
    }
    catch (MongoConnectionException $e)
    {
    $this->error = $e->getMessage();
    return false;
    }
    }
    /**
  • select db
  • 参数:$dbname
  • 返回值:无
    */
    public function selectDb($dbname)
    {
    $this->curr_db_name = $dbname;
    }
    /**
  • 创建索引:如索引已存在,则返回。
  • 参数:
  • $table_name:表名
  • $index:索引-array("id"=>1)-在id字段建立升序索引
  • $index_param:其它条件-是否唯一索引等
  • 返回值:
  • 成功:true
  • 失败:false
    */
    public function ensureIndex($table_name,$index,$index_param=array())
    {
    $dbname = $this->curr_db_name;
    $index_param['safe'] = 1;
    try {
    $this->mongo->$dbname->$table_name->ensureIndex($index,$index_param);
    return true;
    }
    catch (MongoCursorException $e)
    {
    $this->error = $e->getMessage();
    return false;
    }
    }
    /**
  • 插入记录
  • 参数:
  • $table_name:表名
  • $record:记录
  • 返回值:
  • 成功:true
  • 失败:false
    */
    public function insert($table_name,$record)
    {
    $dbname = $this->curr_db_name;
    try {
    $this->mongo->$dbname->$table_name->insert($record,array('safe'=>true));
    return true;
    }
    catch (MongoCursorException $e)
    {
    $this->error = $e->getMessage();
    return false;
    }
    }
    /**
  • 查询表的记录数
  • 参数:
  • $table_name:表名
  • 返回值:表的记录数
    */
    public function count($table_name)
    {
    $dbname = $this->curr_db_name;
    return $this->mongo->$dbname->$table_name->count();
    }
    /**
  • 更新记录
  • 参数:
  • $table_name:表名
  • $condition:更新条件
  • $newdata:新的数据记录
  • $options:更新选择-upsert/multiple
  • 返回值:
  • 成功:true
  • 失败:false
    */
    public function update($table_name,$condition,$newdata,$options=array())
    {
    $dbname = $this->curr_db_name;
    $options['safe'] = 1;
    if (!isset($options['multiple']))
    {
    $options['multiple'] = 0; }
    try {
    $this->mongo->$dbname->$table_name->update($condition,$options);
    return true;
    }
    catch (MongoCursorException $e)
    {
    $this->error = $e->getMessage();
    return false;
    }
    }
    /**
  • 删除记录
  • 参数:
  • $table_name:表名
  • $condition:删除条件
  • $options:删除选择-justOne
  • 返回值:
  • 成功:true
  • 失败:false
    */
    public function remove($table_name,$options=array())
    {
    $dbname = $this->curr_db_name;
    $options['safe'] = 1;
    try {
    $this->mongo->$dbname->$table_name->remove($condition,$options);
    return true;
    }
    catch (MongoCursorException $e)
    {
    $this->error = $e->getMessage();
    return false;
    } }
    /**
  • 查找记录
  • 参数:
  • $table_name:表名
  • $query_condition:字段查找条件
  • $result_condition:查询结果限制条件-limit/sort等
  • $fields:获取字段
  • 返回值:
  • 成功:记录集
  • 失败:false
    */
    public function find($table_name,$query_condition,$result_condition=array(),$fields=array())
    {
    $dbname = $this->curr_db_name;
    $cursor = $this->mongo->$dbname->$table_name->find($query_condition,$fields);
    if (!empty($result_condition['start']))
    {
    $cursor->skip($result_condition['start']);
    }
    if (!empty($result_condition['limit']))
    {
    $cursor->limit($result_condition['limit']);
    }
    if (!empty($result_condition['sort']))
    {
    $cursor->sort($result_condition['sort']);
    }
    $result = array();
    try {
    while ($cursor->hasNext())
    {
    $result[] = $cursor->getNext();
    }
    }
    catch (MongoConnectionException $e)
    {
    $this->error = $e->getMessage();
    return false;
    }
    catch (MongoCursorTimeoutException $e)
    {
    $this->error = $e->getMessage();
    return false;
    }
    return $result;
    }
    /**
  • 查找一条记录
  • 参数:
  • $table_name:表名
  • $condition:查找条件
  • $fields:获取字段
  • 返回值:
  • 成功:一条记录
  • 失败:false
    */
    public function findOne($table_name,$fields=array())
    {
    $dbname = $this->curr_db_name;
    return $this->mongo->$dbname->$table_name->findOne($condition,$fields);
    }
    /**
  • 获取当前错误信息
  • 参数:无
  • 返回值:当前错误信息
    */
    public function getError()
    {
    return $this->error;
    }
    /* NewMongodb类 examples:
  • $mongo = new NewMongodb("127.0.0.1:11223");
  • $mongo->selectDb("test_db");
  • 创建索引
  • $mongo->ensureIndex("test_table",array("id"=>1),array('unique'=>true));
  • 获取表的记录
  • $mongo->count("test_table");
  • 插入记录
  • $mongo->insert("test_table",array("id"=>2,"title"=>"asdqw"));
  • 更新记录
  • $mongo->update("test_table",array("id"=>1,"title"=>"bbb"));
  • 更新记录-存在时更新,不存在时添加-相当于set
  • $mongo->update("test_table","title"=>"bbb"),array("upsert"=>1));
  • 查找记录
  • $mongo->find("c",array("title"=>"asdqw"),array("start"=>2,"limit"=>2,"sort"=>array("id"=>1)))
  • 查找一条记录
  • $mongo->findOne("$mongo->findOne("ttt",array("id"=>1))",array("id"=>1));
  • 删除记录
  • $mongo->remove("ttt",array("title"=>"bbb"));
  • 删除一条记录
  • $mongo->remove("ttt",array("title"=>"bbb"),array("justOne"=>1));
  • 获取Mongo操作的错误信息
  • $mongo->getError();
    */
    }

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