本文章向大家介绍怎么在php中操作mongodb封装类的基本知识点总结和需要注意事项，具有一定的参考价值，需要的朋友可以参考一下。
php是一个嵌套的缩写名称，指的是英文超级文本预处理语言（php:Hypertext Preprocessor）的缩写，它的语法混合了C、Java、Perl以及php自创新的语法，主要用来做网站开发，许多小型网站都用php开发，因为php是开源的，从而使得php经久不衰。
mongodb的封装类.
计算
安全
数据库
网络和加速
企业服务
<?php
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'));以上就是小编为大家带来的怎么在php中操作mongodb封装类的全部内容了，希望大家多多支持亿速云！
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