php操作MongoDB类实例


Posted in PHP onJune 17, 2015

本文实例讲述了php操作MongoDB类的方法。分享给大家供大家参考。具体如下:

1. MyMongo.php文件:

<?php
/**
 * 仿写CI的MongoDB
 * @author sparkHuang 2011-11-03
 *
 */
class MyMongo {
  private $mongo_config = "mongo_config.php";
  private $connection;
  private $db;
  private $mongo_connect_string;
  private $host;
  private $port;
  private $user;
  private $pass;
  private $dbname;
  private $persist;
  private $persist_key;
  private $selects = array();
  private $wheres = array();
  private $sorts = array();
  private $limit = 999999;
  private $offset = 0;
  public function __construct() {
    if ( ! class_exists('Mongo')) {
      $this->log_error("The MongoDB PECL extentiosn has not been installed or enabled.");
      exit;
    }
    
    $this->connection_string();
    $this->connect();
  }
  /**
   * 更改数据库
   *
   */
  public function switch_db($database = '') {
    if (empty($database)) {
      $this->log_error("To switch MongoDB databases, a new database name must be specified");
      exit;
    }
    $this->dbname = $database;
    try {
      $this->db = $this->connection->{$this->dbname};
      return true;
    } catch(Exception $e) {
      $this->log_error("Unable to switch Mongo Databases: {$e->getMessage()}");
      exit;
    }
  }
  /**
   * 设置select字段
   *
   */
  public function select($includs = array(), $excludes = array()) {
    if ( ! is_array($includs)) {
      $includs = (array)$includs;
    }
    
    if ( ! is_array($excludes)) {
      $excludes = (array)$excludes;
    }
    
    if ( ! empty($includs)) {
      foreach ($includs as $col) {
        $this->selects[$col] = 1;
      }
    } else {
      foreach ($excludes as $col) {
        $this->selects[$col] = 0;
      }
    }
    
    return($this);
  }
  /**
   * where条件查询判断
   *
   * @usage = $this->mongo_db->where(array('foo' => 'bar'))->get('foobar');
   *
   */
  public function where($wheres = array()) {
    if ( ! is_array($wheres)) {
      $wheres = (array)$wheres;
    }
    
    if ( ! empty($wheres)) {
      foreach($wheres as $wh => $val) {
        $this->wheres[$wh] = $val;
      }
    }
    
    return($this);
  }
  /**
   * where ... in .. 条件查询判断
   *
   * @usage = $this->mongo_db->where_in('foo', array('bar', 'zoo'))->get('foobar');
   *
   */
  public function where_in($field = '', $in = array()) {
    $this->where_init($field);
    $this->wheres[$field]['$in'] = $in;
    return($this);
  }
  /**
   * where ... not in .. 条件查询判断
   *
   * @usage = $this->mongo_db->where_not_in('foo', array('bar', 'zoo'))->get('foobar');
   *
   */
  public function where_not_in($field = '', $in = array()) {
    $this->where_init($field);
    $this->wheres[$field]['$nin'] = $in;
    return($this);
  }
  /**
   * where ... $field > $x .. 条件查询判断
   *
   * @usage = $this->mongo_db->where_gt('foo', 20)->get('foobar');
   *
   */
  public function where_gt($field = '', $x) {
    $this->where_init($field);
    $this->wheres[$field]['$gt'] = $x;
    return($this);
  }
  /**
   * where ... $field >= $x .. 条件查询判断
   *
   * @usage = $this->mongo_db->where_gte('foo', 20)->get('foobar');
   *
   */
  public function where_gte($field = '', $x) {
    $this->where_init($field);
    $this->wheres[$field]['$gte'] = $x;
    return($this);
  }
  /**
   * where ... $field < $x .. 条件查询判断
   *
   * @usage = $this->mongo_db->where_lt('foo', 20)->get('foobar');
   *
   */
  public function where_lt($field = '', $x) {
    $this->where_init($field);
    $this->wheres[$field]['$lt'] = $x;
    return($this);
  }
  /**
   * where ... $field <= $x .. 条件查询判断
   *
   * @usage = $this->mongo_db->where_lte('foo', 20)->get('foobar');
   *
   */
  public function where_lte($field = '', $x) {
    $this->where_init($field);
    $this->wheres[$field]['$lte'] = $x;
    return($this);
  }
  /**
   * where ... $field >= $x AND $field <= $y .. 条件查询判断
   *
   * @usage = $this->mongo_db->where_between('foo', 20, 30)->get('foobar');
   *
   */
  public function where_between($field = '', $x, $y) {
    $this->where_init($field);
    $this->wheres[$field]['$gte'] = $x;
    $this->wheres[$field]['$lte'] = $y;
    return($this);
  }
  /**
   * where ... $field > $x AND $field < $y .. 条件查询判断
   *
   * @usage = $this->mongo_db->where_between_ne('foo', 20, 30)->get('foobar');
   *
   */
  public function where_between_ne($field = '', $x, $y) {
    $this->where_init($field);
    $this->wheres[$field]['$gt'] = $x;
    $this->wheres[$field]['$lt'] = $y;
    return($this);
  }
  /**
   * where ... $field <> $x .. 条件查询判断
   *
   * @usage = $this->mongo_db->where_ne('foo', 20)->get('foobar');
   *
   */
  public function where_ne($field = '', $x) {
    $this->where_init($field);
    $this->wheres[$field]['$ne'] = $x;
    return($this);
  }
  /**
   * where ... or .. 条件查询判断
   *
   * @usage = $this->mongo_db->where_or('foo', array('foo', 'bar'))->get('foobar');
   *
   */
  public function where_or($field = '', $values) {
    $this->where_init($field);
    $this->wheres[$field]['$or'] = $values;
    return($this);
  }
  /**
   *  where ... and .. 条件查询判断
   *  
   *  @usage = $this->mongo_db->where_and( array ( 'foo' => 1, 'b' => 'someexample' );
   */
   public function where_and( $elements_values = array() ) {
     foreach ( $elements_values as $element => $val ) {
       $this->wheres[$element] = $val;
     }
     return($this);
   }
  /**
   *  where $field % $num = $result
   *
   *  @usage = $this->mongo_db->where_mod( 'foo', 10, 1 );
   */   
   public function where_mod( $field, $num, $result ) {
     $this->where_init($field);
     $this->wheres[$field]['$mod'] = array($num, $result);
     return($this);
   }
  /**
   * where size
   *
   *  Get the documents where the size of a field is in a given $size int
   *
   *  @usage : $this->mongo_db->where_size('foo', 1)->get('foobar');
   */
  public function where_size($field = "", $size = "") {
    $this->where_init($field);
    $this->wheres[$field]['$size'] = $size;
    return ($this);
  }
  /**
   * like条件查询(PHP中定义MongoRegex类实现)
   *
   * @usage : $this->mongo_db->like('foo', 'bar', 'im', false, false)->get();
   */
  public function like($field = "", $value = "", $flags = "i", $enable_start_wildcard = true, $enable_end_wildcard = true) {
    $field = (string)$field;
    $this->where_init($field);
    $value = (string)$value;
    $value = quotmeta($value);
    
    if (true !== $enable_start_wildcard) {
      $value = "^".$value;
    }
    
    if (true !== $enable_end_wildcard) {
      $value .= "$";
    }
    
    $regex = "/$value/$flags";
    $this->wheres[$field] = new MongoRegex($regex);
    return($this);
  }
  /**
   * order排序( 1 => ASC, -1 => DESC)
   *
   * @usage: $this->mongo_db->get_where('foo', array('name' => 'tom'))->order_by(array("age" => 1));
   */
  public function order_by($fields = array()) {
    foreach($fields as $col => $val) {
      if ($val == -1 || $val == false || strtolower($val) == "desc") {
        $this->sorts[$col] = -1;
      } else {
        $this->sorts[$col] = 1;
      }
    }
    return($this);
  }
  /**
   * limit
   *
   * @usage: $this->mongo_db->get_where('foo', array('name' => 'tom'))->limit(10);
   */
  public function limit($x = 999999) {
    if ($x !== NULL && is_numeric($x) && $x >= 1) {
      $this->limit = (int)$x;
    }
    return($this);
  }
  /**
   * offset
   *
   * @usage: $this->mongo_db->get_where('foo', array('name' => 'tom'))->offset(10);
   */
  public function offset($x = 0) {
     if($x !== NULL && is_numeric($x) && $x >= 1) {
       $this->offset = (int) $x;
     }
     return($this);
  }
  /**
   * get_where
   * 
   * @usage: $this->mongo_db->get_where('foo', array('bar' => 'something'));
   */
  public function get_where($collection = "", $where = array(), $limit = 999999) {
    return($this->where($where)->limit($limit)->get($collection));
  }
  /**
   * get
   *
   * @usage: $this->mongo_db->where(array('name' => 'tom'))->get('foo');
   */
  public function get($collection) {
    if (empty($collection)) {
      $this->log_error("In order to retreive documents from MongoDB, a collection name must be passed");
      exit;
    }
    $results = array();
    $results = $this->db->{$collection}->find($this->wheres, $this->selects)->limit((int)$this->limit)->skip((int)$this->offset)->sort($this->sorts);
    $returns = array();
    foreach($results as $result) {
      $returns[] = $result;
    }
    $this->clear();
    return($returns);
  }
  /**
   * count
   *
   * @usage: $this->db->get_where('foo', array('name' => 'tom'))->count('foo'); 
   */
  public function count($collection) {
    if (empty($collection)) {
      $this->log_error("In order to retreive documents from MongoDB, a collection name must be passed");
      exit;
    }
    $count = $this->db->{$collection}->find($this->wheres)->limit((int)$this->limit)->skip((int)$this->offset)->count();
    $this->clear();
    return($count);
  }
  /**
   * insert
   *
   * @usage: $this->mongo_db->insert('foo', array('name' => 'tom'));
   */
  public function insert($collection = "", $data = array()) {
    if (empty($collection)) {
      $this->log_error("No Mongo collection selected to delete from");
      exit;
    }
    if (count($data) == 0 || ! is_array($data)) {
      $this->log_error("Nothing to insert into Mongo collection or insert is not an array");
      exit;
    }
    try {
      $this->db->{$collection}->insert($data, array('fsync' => true));
      if (isset($data['_id'])) {
        return($data['_id']);
      } else {
        return(false);
      }
    } catch(MongoCursorException $e) {
      $this->log_error("Insert of data into MongoDB failed: {$e->getMessage()}");
      exit;
    }
  }
  /**
   * update : 利用MongoDB的 $set 实现
   *
   * @usage : $this->mongo_db->where(array('name' => 'tom'))->update('foo', array('age' => 24))
   */
  public function update($collection = "", $data = array()) {
    if (empty($collection)) {
      $this->log_error("No Mongo collection selected to delete from");
      exit;
    }
    if (count($data) == 0 || ! is_array($data)) {
      $this->log_error("Nothing to update in Mongo collection or update is not an array");
      exit;
    }
    try {
      $this->db->{$collection}->update($this->wheres, array('$set' => $data), array('fsync' => true, 'multiple' => false)); //注意: multiple为false
      return(true);
    } catch(MongoCursorException $e) {
      $this->log_error("Update of data into MongoDB failed: {$e->getMessage()}");
      exit;
    }
  }
  /**
   * update_all : 利用MongoDB的 $set 实现
   *
   * @usage : $this->mongo_db->where(array('name' => 'tom'))->update_all('foo', array('age' => 24));
   */
  public function update_all($collection = "", $data = array()) {
    if (empty($collection)) {
      $this->log_error("No Mongo collection selected to delete from");
      exit;
    }
    if (count($data) == 0 || ! is_array($data)) {
      $this->log_error("Nothing to update in Mongo collection or update is not an array");
      exit;
    }
    try {
      $this->db->{$collection}->update($this->wheres, array('$set' => $data), array('fsync' => true, 'multiple' => true)); //注意: multiple为true
      return(true);
    } catch(MongoCursorException $e) {
      $this->log_error("Update of data into MongoDB failed: {$e->getMessage()}");
      exit;
    }
  }
  /**
   * delete 
   *
   * @usage : $this->mongo_db->where(array('name' => 'tom'))->delete('foo');
   */
  public function delete($collection = "") {
    if (empty($collection)) {
      $this->log_error("No Mongo collection selected to delete from");
      exit;
    }
    try {
      $this->db->{$collection}->remove($this->wheres, array('fsync' => true, 'justOne' => true)); //注意justOne为true;
    } catch(MongoCursorException $e) {
      $this->log_error("Delete of data into MongoDB failed: {$e->getMessage()}");
      exit;
    }
  }  
  /**
   * delete_all
   *
   * @usage : $this->mongo_db->where(array('name' => 'tom'))->delete_all('foo');
   */
  public function delete_all($collection = "") {
    if (empty($collection)) {
      $this->log_error("No Mongo collection selected to delete from");
      exit;
    }
    try {
      $this->db->{$collection}->remove($this->wheres, array('fsync' => true, 'justOne' => false)); //注意justOne为false;
    } catch(MongoCursorException $e) {
      $this->log_error("Delete of data into MongoDB failed: {$e->getMessage()}");
      exit;
    }
  }
  /** 
   * add_index
   *
   * @usage : $this->mongo_db->add_index('foo', array('first_name' => 'ASC', 'last_name' => -1), array('unique' => true)));
   */
  public function add_index($collection, $keys = array(), $options = array()) {
    if (empty($collection)) {
      $this->log_error("No Mongo collection specified to add index to");
      exit;
    }
    if (empty($keys) || ! is_array($keys)) {
      $this->log_error("Index could not be created to MongoDB Collection because no keys were specified");
      exit;
    }
    foreach($keys as $col => $val) {
      if ($val == -1 || $val == false || strtolower($val) == 'desc') {
        $keys[$col] = -1;
      } else {
        $keys[$col] = 1;
      }
    }
    //在此没有对$options数组的有效性进行验证
    if (true == $this->db->{$collection}->ensureIndex($keys, $options)) {
      $this->clear();
      return($this);
    } else {
      $this->log_error("An error occured when trying to add an index to MongoDB Collection");
      exit;
    }
  }
  /**
   * remove_index
   *
   * @usage : $this->mongo_db->remove_index('foo', array('first_name' => 'ASC', 'last_name' => -1))
   */
  public function remove_index($collection = "", $keys = array()) {
    if (empty($collection)) {
      $this->log_error("No Mongo collection specified to add index to");
      exit;
    }
    if (empty($keys) || ! is_array($keys)) {
      $this->log_error("Index could not be created to MongoDB Collection because no keys were specified");
      exit;
    }
    if ($this->db->{$collection}->deleteIndex($keys)) {
      $this->clear();
      return($this);
    } else {
      $this->log_error("An error occured when trying to add an index to MongoDB Collection");
      exit;
    }
  }
  /**
   * remove_all_index
   *
   * @usage : $this->mongo_db->remove_all_index('foo', array('first_name' => 'ASC', 'last_name' => -1))
   */
  public function remove_all_index($collection = "", $keys = array()) {
    if (empty($collection)) {
      $this->log_error("No Mongo collection specified to add index to");
      exit;
    }
    if (empty($keys) || ! is_array($keys)) {
      $this->log_error("Index could not be created to MongoDB Collection because no keys were specified");
      exit;
    }
    if ($this->db->{$collection}->deleteIndexes($keys)) {
      $this->clear();
      return($this);
    } else {
      $this->log_error("An error occured when trying to add an index to MongoDB Collection");
      exit;
    }
  }
  /**
   * list_indexes
   *
   * @usage : $this->mongo_db->list_indexes('foo');
   */
  public function list_indexes($collection = "") {
    if (empty($collection)) {
      $this->log_error("No Mongo collection specified to add index to");
      exit;
    }
    return($this->db->{$collection}->getIndexInfo());
  }
  /**
   * drop_collection
   *
   * @usage : $this->mongo_db->drop_collection('foo');
   */
  public function drop_collection($collection = "") {
    if (empty($collection)) {
      $this->log_error("No Mongo collection specified to add index to");
      exit;
    }
    $this->db->{$collection}->drop();
    return(true);
  }
  /**
   * 生成连接MongoDB 参数字符串
   *
   */
  private function connection_string() {
    include_once($this->mongo_config);
    $this->host = trim($config['host']);
    $this->port = trim($config['port']);
    $this->user = trim($config['user']);
    $this->pass = trim($config['pass']);
    $this->dbname = trim($config['dbname']);
    $this->persist = trim($config['persist']);
    $this->persist_key = trim($config['persist_key']);
    $connection_string = "mongodb://";
    if (empty($this->host)) {
      $this->log_error("The Host must be set to connect to MongoDB");
      exit;
    }
    if (empty($this->dbname)) {
      $this->log_error("The Database must be set to connect to MongoDB");
      exit;
    }
    if ( ! empty($this->user) && ! empty($this->pass)) {
      $connection_string .= "{$this->user}:{$this->pass}@";
    }
    if ( isset($this->port) && ! empty($this->port)) {
      $connection_string .= "{$this->host}:{$this->port}";
    } else {
      $connection_string .= "{$this->host}";
    }
    $this->connection_string = trim($connection_string);
  }
  /**
   * 连接MongoDB 获取数据库操作句柄
   *
   */
  private function connect() {
    $options = array();
    if (true === $this->persist) {
      $options['persist'] = isset($this->persist_key) && ! empty($this->persist_key) ? $this->persist_key : "ci_mongo_persist";
    }
    try {
      $this->connection = new Mongo($this->connection_string, $options);
      $this->db = $this->connection->{$this->dbname};
      return ($this);
    } catch (MongoConnectionException $e) {
      $this->log_error("Unable to connect to MongoDB: {$e->getMessage()}");
    }
  }
  /**
   * 初始化清理部分成员变量
   * 
   */
  private function clear() {
    $this->selects = array();
    $this->wheres = array();
    $this->limit = NULL;
    $this->offset = NULL;
    $this->sorts = array();
  }
  /**
   * 依据字段名初始化处理$wheres数组
   *
   */
  private function where_init($param) {
    if ( ! isset($this->wheres[$param])) {
      $this->wheres[$param] = array();
    }
  }
  /**
   * 错误记录
   *
   */
  private function log_error($msg) {
    $msg = "[Date: ".date("Y-m-i H:i:s")."] ".$msg;
    @file_put_contents("./error.log", print_r($msg."\n", true), FILE_APPEND);
  }
}
/* End of MyMongo.php */

2. mongo_config.php配置文件:

<?php
$config["host"] = "localhost";
$config["user"] = "";
$config["pass"] = "";
$config["port"] = 27017;
$config["dbname"] = "test";
$config['persist'] = TRUE;
$config['persist_key'] = 'ci_mongo_persist';
/*End of mongo_config.php*/

3. MyMongoDemo.php文件:

<?php
include_once("MyMongo.php");
$conn = new MyMongo();
//删除所有记录
$conn->delete_all("blog");
//插入第一条记录
$value = array("name" => "小明", "age" => 25, "addr" => array("country" => "中国", "province" => "广西", "city" => "桂林"));
$conn->insert("blog", $value);
var_dump($conn->select(array("name", "age"))->get("blog"));
var_dump($conn->get("blog"));
/* End of MyMongoDemo.php */

希望本文所述对大家的php程序设计有所帮助。

PHP 相关文章推荐
dede3.1分页文字采集过滤规则详说(图文教程)续二
Apr 03 PHP
PHP无敌近乎加密方式!
Jul 17 PHP
PHP 第二节 数据类型之转换
Apr 28 PHP
PHP json格式和js json格式 js跨域调用实现代码
Sep 08 PHP
一个漂亮的php验证码类(分享)
Aug 06 PHP
php对数组排序的简单实例
Dec 25 PHP
PHP实现将视频转成MP4并获取视频预览图的方法
Mar 12 PHP
详解PHP执行定时任务的实现思路
Dec 21 PHP
php实现替换手机号中间数字为*号及隐藏IP最后几位的方法
Nov 16 PHP
PHP中使用mpdf 导出PDF文件的实现方法
Oct 22 PHP
小程序微信退款功能实现方法详解【基于thinkPHP】
May 05 PHP
在laravel框架中实现封装公共方法全局调用
Oct 14 PHP
PHP实现的购物车类实例
Jun 17 #PHP
CodeIgniter实现从网站抓取图片并自动下载到文件夹里的方法
Jun 17 #PHP
PHP基于MySQL数据库实现对象持久层的方法
Jun 17 #PHP
php使用curl打开https网站的方法
Jun 17 #PHP
php使用CURL不依赖COOKIEJAR获取COOKIE的方法
Jun 17 #PHP
PHP封装的HttpClient类用法实例
Jun 17 #PHP
PHP处理postfix邮件内容的方法
Jun 16 #PHP
You might like
PHP个人网站架设连环讲(三)
2006/10/09 PHP
discuz程序的PHP加密函数原理分析
2011/08/05 PHP
PHP合并两个数组的两种方式的异同
2012/09/14 PHP
php记录代码执行时间(实现代码)
2013/07/05 PHP
php使用MySQL保存session会话的方法
2015/06/26 PHP
TimergliderJS 一个基于jQuery的时间轴插件
2011/12/07 Javascript
5个javascript的数字格式化函数分享
2011/12/07 Javascript
JS实现简单的Canvas画图实例
2013/07/04 Javascript
浅析offsetLeft,Left,clientLeft之间的区别
2013/11/30 Javascript
举例讲解jQuery对DOM元素的向上遍历、向下遍历和水平遍历
2016/07/07 Javascript
JS选取DOM元素的简单方法
2016/07/08 Javascript
jQuery中Nicescroll滚动条插件的用法
2016/11/10 Javascript
Html5 js实现手风琴效果
2020/04/17 Javascript
基于javascript实现数字英文验证码
2017/01/25 Javascript
JavaScript仿微信打飞机游戏
2020/07/05 Javascript
Vue-cli proxyTable 解决开发环境的跨域问题详解
2017/05/18 Javascript
jQuery 导航自动跟随滚动的实现代码
2018/05/30 jQuery
利用vue.js把静态json绑定bootstrap的table方法
2018/08/28 Javascript
vue父子组件的通信方法(实例详解)
2019/11/10 Javascript
小程序卡片切换效果组件wxCardSwiper的实现
2020/02/13 Javascript
vue项目中微信登录的实现操作
2020/09/08 Javascript
[26:40]DOTA2上海特级锦标赛A组资格赛#1 Secret VS MVP.Phx第一局
2016/02/25 DOTA
解决python3中解压zip文件是文件名乱码的问题
2018/03/22 Python
Python爬取破解无线网络wifi密码过程解析
2019/09/17 Python
np.random.seed() 的使用详解
2020/01/14 Python
Python多进程multiprocessing、进程池用法实例分析
2020/03/24 Python
Python搭建Keras CNN模型破解网站验证码的实现
2020/04/07 Python
python3 配置logging日志类的操作
2020/04/08 Python
如何通过python实现IOU计算代码实例
2020/11/02 Python
客服服务心得体会
2013/12/30 职场文书
给老师的一封建议书
2014/03/13 职场文书
服务承诺书格式
2014/05/21 职场文书
小学运动会报道稿
2014/10/04 职场文书
怒海潜将观后感
2015/06/11 职场文书
2016形势与政策学习心得体会
2016/01/12 职场文书
游戏《东方异文石:爱亚利亚黎明》正式版发布
2022/04/03 其他游戏