An introduction to a php7+mongodb three-party class

This article brings you an introduction to a php7 mongodb three-party class. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

Due to project needs, the project has been upgraded to php7. But after upgrading, I found that the mongo extension cannot be used. PHP7.0 and above only support mongodb extension. The mongodb extension driver is more complicated and verbose to use than the monmgo extension. I've been looking for it online for a long time. Finally found a relatively simple mongodb class. The syntax is similar to that of mongo. Clear and natural.

Project address https://github.com/mongodb/mongo-php-library

Because the project was contributed by foreign friends. So there is no clear document that can be read. Here are some commonly used methods.

Get instance

$uri = "mongodb://username:password@host/database";
$client = new \MongoDB\Client($uri);

Get collection

$collection = $client->selectCollection('test','test');

Get a piece of data

$data = $collection->findOne(['id'=>1]);

Get multiple pieces of data

$where = ['type'=>1];
$options = array(
    'projection' => array('id' => 1, 'age' => 1, 'name' => -1), // 指定返回哪些字段 1 表示返回 -1 表示不返回
    'sort' => array('id' => -1), // 指定排序字段
    'limit' => 10, // 指定返回的条数
    'skip' => 0, // 指定起始位置
);
$data = $collection->find($where,$options)->toArray();
var_dump($data);

Remove duplicates

$fileName = 'name';
$where = ['id' => ['$lt' => 100]]
$ret = $this->collection->distinct($fileName,$where);

Insert a piece of data

$data = array(
    'id' => 2,
    'age' => 20,
    'name' => '张三'
);
$ret = $collection->insertOne($data);
$id=$ret->getInsertedId();

Batch insert

$data = array(
    ['id' => 1, 'age' => 21, 'name' => '1xiaoli'],
    ['id' => 2, 'age' => 22, 'name' => '2xiaoli'],
    ['id' => 3, 'age' => 23, 'name' => '3xiaoli'],
    ['id' => 4, 'age' => 26, 'name' => '4xiaoli'],
    ['id' => 5, 'age' => 24, 'name' => '5xiaoli'],
    ['id' => 6, 'age' => 25, 'name' => '6xiaoli'],
);
$ret = $collection->insertMany($data);
# 返回插入id
var_dump($ret->getInsertedIds());

Update one item

$ret = $collection->updateOne(array('id' => 2), array('$set' => array('age' => 56)));

Update multiple items

$ret = $collection->updateMany(array('id' => ['$gt' => 1]), array('$set' => array('age' => 56, 'name' => 'x')));

Delete one item

$ret = $collection->deleteOne(array('id' => 2));

Delete multiple items

$collection->deleteMany(array('id' => array('$in' => array(1, 2))));

Aggregation

$ops = [
    [
        '$match' =>['type'=>['$in'=>[2,4]]]
    ],
    [
        '$sort' => ['list.create_time' => -1]  //sort顺序不能变，否则会造成排序混乱，注意先排序再分页
    ],
    [
        '$skip' => 0
    ],
    [
        '$limit' => 20000
    ],
];
$data = $collection->aggregate($ops);
foreach ($data as $document)
{
    var_dump($document);
}

Related recommendations:

Detailed explanation of how to implement MongoDB fuzzy query in php7

##Mongodb operation class implemented by php, mongodb implemented by php

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