php实现的mongodb操作类

mongo_db.php

throwError('集合不能为空！');
    }
 
    //判断是否传递了host和port
    if (NULL !== $host) {
      $this->host = $host;
    }
 
    if (NULL !== $port) {
      $this->port = $port;
    }
 
    $this->table = $table;
 
    $this->mongo = new MongoClient($this->host . ':' . $this->port);
    if ($this->getVersion() >= '0.9.0') {
      $this->dbname = $this->mongo->selectDB($dbname);
      $this->db = $this->dbname->selectCollection($table);
    } else {
      $this->db = $this->mongo->$dbname->$table;
    }
  }
 
  public function getVersion()
  {
    return MongoClient::VERSION;
  }
 
  
  //public static function getInstance($host=null, $port=null, $dbname=null, $table=null){
  //
  //  if(!(self::$instanceof instanceof self)){
  //    self::$instanceof = new self($host, $port, $dbname, $table);
  //  }
  //
  //  return self::$instanceof;
  //}
 
  
  public function insert($doc = array())
  {
    if (empty($doc)) {
      $this->throwError('插入的数据不能为空！');
    }
    //保存数据信息
    try {
      if (!$this->db->insert($doc)) {
 throw new MongoException('插入数据失败');
      }
    } catch (MongoException $e) {
      $this->throwError($e->getMessage());
    }
  }
 
  
  public function insertMulti($doc = array())
  {
    if (empty($doc)) {
      $this->throwError('插入的数据不能为空！');
    }
    //插入数据信息
    foreach ($doc as $key => $val) {
      //判断$val是不是数组
      if (is_array($val)) {
 $this->insert($val);
      }
    }
  }
 
  
  public function findOne($where = NULL)
  {
    if (NULL === $where) {
      try {
 if ($result = $this->db->findOne()) {
   return $result;
 } else {
   throw new MongoException('查找数据失败');
 }
      } catch (MongoException $e) {
 $this->throwError($e->getMessage());
      }
    } else {
      try {
 if ($result = $this->db->findOne($where)) {
   return $result;
 } else {
   throw new MongoException('查找数据失败');
 }
      } catch (MongoException $e) {
 $this->throwError($e->getMessage());
      }
    }
 
  }
 
  
  public function find($where = NULL)
  {
    if (NULL === $where) {
 
      try {
 if ($result = $this->db->find()) {
 
 } else {
   throw new MongoException('查找数据失败');
 }
      } catch (MongoException $e) {
 $this->throwError($e->getMessage());
      }
    } else {
      try {
 if ($result = $this->db->find($where)) {
 
 } else {
   throw new MongoException('查找数据失败');
 }
      } catch (MongoException $e) {
 $this->throwError($e->getMessage());
      }
    }
 
    $arr = array();
    foreach ($result as $id => $val) {
      $arr[] = $val;
    }
 
    return $arr;
  }
 
  
  public function getCount()
  {
    try {
      if ($count = $this->db->count()) {
 return $count;
      } else {
 throw new MongoException('查找总数失败');
      }
    } catch (MongoException $e) {
      $this->throwError($e->getMessage());
    }
  }
 
  
  public function getDbs()
  {
    return $this->mongo->listDBs();
  }
 
  
  public function dropDb($dbname = NULL)
  {
    if (NULL !== $dbname) {
      $retult = $this->mongo->dropDB($dbname);
      if ($retult['ok']) {
 return TRUE;
      } else {
 return FALSE;
      }
    }
    $this->throwError('请输入要删除的数据库名称');
  }
 
  
  public function closeDb()
  {
    $this->mongo->close(TRUE);
  }
 
  
  public function throwError($errorInfo='')
  {
    echo "出错了：$errorInfo";
    die();
  }
 
}

以上所述就是本文的全部内容了，希望大家能够喜欢。