php操作mongodb封装类与用法实例

本文实例讲述了php操作mongodb封装类与用法。分享给大家供大家参考，具体如下：

近来学习了mongodb，刚好是做php开发的,随便写了php操作mongodb的封装类.

<?php
/**
 * created by phpstorm.
 * user: lee
 * date: 2016/10/24
 * time: 13:49
 */
namespace app\http\controllers\api;
use app\http\common\returnapi;
/*
 *
 *
 mongdb常规操作
 */
class mongdbcommoncontroller
{
  private static $conn;
  private static $mon;
  private static $error;
  private function __construct(){
    //self::$conn = new \mongoclient("mongodb://".env('mongdb_user').":".env('mongdb_pass')."@".env('mongdb_host').":".env('mongdb_port')."/".env('mongdb_db'));
    self::$conn = new \mongoclient("mongodb://".env('mongdb_user').":".env('mongdb_pass')."@".env('mongdb_host').":".env('mongdb_port'));
    //self::$conn = new \mongoclient("mongodb://".env('mongdb_host').":".env('mongdb_port'));
    $db = env('mongdb_db');
    self::$mon = self::$conn->$db;
  }
  public static function getinstance(){
    if(!(self::$conn instanceof self)){
      self::$conn = new self();
    }
    //return self::$conn->mydb;
    return self::$conn;
  }
  private function __clone(){
    trigger_error('clone is not allowed');
  }//禁止克隆
  //创建索引
  public function ensureindex($table, $index, $index_param=array())
  {
    $index_param['safe'] = 1;
    try {
      self::$mon->$table->ensureindex($index, $index_param);
      return true;
    }
    catch (mongocursorexception $e)
    {
      self::$error = $e->getmessage();
      return false;
    }
  }
  //添加
  public function insert($table,$arr){
    try {
      self::$mon->$table->insert($arr, array('w'=>true));
      return true;
    }
    catch (mongocursorexception $e)
    {
      self::$error = $e->getmessage();
      return false;
    }
  }
  //更新
  public function update($table, $condition, $new_arr, $options=array())
  {
    $options['w'] = 1;
    if (!isset($options['multiple']))
    {
      $options['multiple'] = 0;
    }
    try {
      self::$mon->$table->update($condition, $new_arr, $options);
      return true;
    }
    catch (mongocursorexception $e)
    {
      self::$error = $e->getmessage();
      return false;
    }
  }
  //删除
  public function remove($table, $condition, $options=array())
  {
    $options['w'] = 1;
    try {
      self::$mon->$table->remove($condition, $options);
      return true;
    }
    catch (mongocursorexception $e)
    {
      self::$error = $e->getmessage();
      return false;
    }
  }
  //查找
  public function find($table, $query_condition, $result_condition=array(), $fields=array())
  {
    $cursor = self::$mon->$table->find($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 (mongocursortimeoutexception $e)
    {
      self::$error = $e->getmessage();
      return false;
    }
    return $result;
  }
  //查找一条记录
  public function findone($table, $condition, $fields=array())
  {
    return self::$mon->$table->findone($condition, $fields);
  }
  //返回表的记录数
  public function count($table)
  {
    return self::$mon->$table->count();
  }
  //返回错误信息
  public function geterror()
  {
    return self::$error;
  }
}

操作实例：

use app\http\controllers\api\mongdbcommoncontroller;
$db = mongdbcommoncontroller::getinstance();
$collection = 'tab';
$data = array('tt' =>'sdsd',
 'pp'  => 'ssdsdf');
//返回记录数
echo $db->count($collection);
//插入记录
$db->insert($collection, array("id"=>2, "title"=>"asdqw"));
//更新
$db->update($collection, array("id"=>2),array('tt'=>'dfdfd',"gg"=>"bbb",'hh'=>'dfsdsd'));
//查找记录
echo '<pre>';
print_r( $db->find($collection, array("tt"=>'dfdfd'), array("start"=>1,"limit"=>4)));
//删除
$db->remove($collection, array('tt' =>'sdsd'));

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希望本文所述对大家php程序设计有所帮助。