小编复习MongoDB,基础请参考：MongoDB-CSDN博客（主要是linux操作）

PHP操作

<?php
 /**
 * 注意 本类仅适用于PHP7.0版本以上   
 * 请注意：mongoDB 支持版本 3.2+
 * mongo具体参数参考： https://docs.mongodb.com/manual/reference/command/
 */
class MyMongodb {
    private $manager;
    private $dbname='yun';
    /**
     * 创建实例
     * @param  string $confkey
     * @return object
     */
    public function __construct($dns){
        $this->manager = new MongoDB\Driver\Manager($dns);
    }
    /**
     * 插入
     */
    public function insert($table,$data){
        $bulk = new MongoDB\Driver\BulkWrite;
        $bulk->insert($data);
        $writeConcern = new MongoDB\Driver\WriteConcern(MongoDB\Driver\WriteConcern::MAJORITY, 1000);
        $res = $this->manager->executeBulkWrite($this->dbname.'.'.$table, $bulk, $writeConcern);
        return $res?true:false;
    }
    public function insert_batch($table,$data)
    {
        $bulk = new MongoDB\Driver\BulkWrite;
        foreach ($data as $val){
            $bulk->insert($val);
        }
        $writeConcern = new MongoDB\Driver\WriteConcern(MongoDB\Driver\WriteConcern::MAJORITY, 1000);
        $res = $this->manager->executeBulkWrite($this->dbname.'.'.$table, $bulk, $writeConcern);
        return $res?true:false;
    }
    /**
     * 查询
     * eg:['age' => 24]]
     * eg；$options = [
     *      'projection' => ['_id' => 0], //不输出_id字段
     *      'sort' => ['leavetime'=>-1] //根据user_id字段排序 1是升序，-1是降序
     *   ];
     */
    public function select($table,$filter,$options=array()){
        !$filter && dieError('param of filter is error');
        $options['projection']=['_id' => 0];
        $query = new MongoDB\Driver\Query($filter, $options); //查询请求
        $cursor = $this->manager->executeQuery($this->dbname.'.'.$table, $query);
        $result = [];
        foreach($cursor as $doc) {
          $result[] = (array)$doc;
        }
        return $result;
    }
    /**
     * 修改
     * eg:$condition=['name' => 'JetWu5']
     * eg:$set_array= ['$set' => ['age' => 30, 'promise' => 'always smile!']]
     */
    public function update($table,$condition=array(),$set_array=array()){
        !$condition && dieError('param of condition is error');
        !$set_array && dieError('param of set_array is error');
        $bulk = new MongoDB\Driver\BulkWrite;
        $bulk->update(
          $condition,
          $set_array
        );
        $writeConcern = new MongoDB\Driver\WriteConcern(MongoDB\Driver\WriteConcern::MAJORITY, 1000);//可选，修改确认
        $res = $this->manager->executeBulkWrite($this->dbname.'.'.$table, $bulk, $writeConcern);
        return $res?true:false;
    }
    /**
     * 删除
     * eg:$condition=['name' => 'JetWu5']
     * if $condition==[] then delete all table documents!
     */
    public function delete($table,$condition=[]){
        !is_array($condition) && dieError('param of condition is error');
        $bulk = new MongoDB\Driver\BulkWrite;
        $bulk->delete($condition);
        $writeConcern = new MongoDB\Driver\WriteConcern(MongoDB\Driver\WriteConcern::MAJORITY, 1000);//可选，修改确认
        $res = $this->manager->executeBulkWrite($this->dbname.'.'.$table, $bulk, $writeConcern);
        return $res?true:false;
    }
    function exec($opts) {
        $cmd = new MongoDB\Driver\Command($opts);
        $cursor =  $this->manager->executeCommand($this->dbname, $cmd);
        $result = [];
        foreach($cursor as $doc) {
          $result[] = (array)$doc;
        }
        return $result;
    }
}

关键字

$eq：等于
$gt：大于
$gte：大于等于
$lt：小于
$lte：小于等于
$ne：不等于
$in：在指定数组中
$nin：不在指定数组中
$and：逻辑与
$or：逻辑或
$not：逻辑非
$exists：字段是否存在

//数据库链接
$mongodb = new MongoDB\Driver\Manager('mongodb://localhost:27017');
//数据写入
$bulk = new MongoDB\Driver\BulkWrite;
$bulk->insert(['x' => 1, 'name'=>'测试数据1', 'type' => 1,'desc'=>'描述1']);
$bulk->insert(['x' => 2, 'name'=>'测试数据2', 'type' => 2,'desc'=>'描述2']);
$bulk->insert(['x' => 3, 'name'=>'测试数据3', 'type' => 1,'desc'=>'描述3']);
$bulk->insert(['x' => 4, 'name'=>'测试数据4', 'type' => 2,'desc'=>'描述4']);
$bulk->insert(['x' => 5, 'name'=>'测试数据5', 'type' => 1,'desc'=>'描述5']);
$bulk->insert(['x' => 6, 'name'=>'测试数据6', 'type' => 2,'desc'=>'描述6']);
$mongodb->executeBulkWrite('message.test', $bulk);//数据写入（写入meaasge库的test表）

//数据查询
$filter = ['x' => ['$lte' => 3]];
$options = [
    'projection' => ['_id' => 0],
    'sort' => ['x' => 1],
];
$query = new MongoDB\Driver\Query($filter, $options); // 查询数据（预处理语句）
$cursor = $mongodb->executeQuery('message.test', $query);//执行查询
foreach ($cursor as $document) {//数据循环输出
    print_r($document);
}

//数据修改
$bulk = new MongoDB\Driver\BulkWrite;
$bulk->update(
    ['x' => 2],
    ['$set' => ['name' => '测试数据22', 'desc' => '描述22']],
    ['multi' => false, 'upsert' => false]
);
$writeConcern = new MongoDB\Driver\WriteConcern(MongoDB\Driver\WriteConcern::MAJORITY, 1000);
$result = $mongodb->executeBulkWrite('message.test', $bulk, $writeConcern);
var_dump($result);

//数据删除
$bulk = new MongoDB\Driver\BulkWrite;
$bulk->delete(['x' => 1], ['limit' => 1]);   // limit 为 1 时，删除第一条匹配数据，limit 为 0 时，删除所有匹配数据
$writeConcern = new MongoDB\Driver\WriteConcern(MongoDB\Driver\WriteConcern::MAJORITY, 1000);
$result = $mongodb->executeBulkWrite('message.test', $bulk, $writeConcern);
var_dump($result);
die;