时间:2021-07-01 10:21:17 帮助过:15人阅读
由于项目需要,把项目升级到了php7。但是升级了之后发现mongo扩展不能用了。php7.0以上只支持mongodb扩展了。而mongodb扩展的驱动使用起来比monmgo扩展显得很复杂,啰嗦。在网上找了很久。终于找到了一个比较简洁的mongodb类。语法跟mongo的差不多。清晰,自然。
项目地址https://github.com/mongodb/mongo-php-library
因为项目是国外友人贡献的。所以没有可以看的很明白的文档。这里整理了一些常用的方法。
获取实例
$uri = "mongodb://username:password@host/database"; $client = new \MongoDB\Client($uri);
获取集合
$collection = $client->selectCollection('test','test');
获取一条数据
$data = $collection->findOne(['id'=>1]);
获取多条数据
$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);
去重
$fileName = 'name'; $where = ['id' => ['$lt' => 100]] $ret = $this->collection->distinct($fileName,$where);
插入一条数据
$data = array( 'id' => 2, 'age' => 20, 'name' => '张三' ); $ret = $collection->insertOne($data); $id=$ret->getInsertedId();
批量插入
$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());
更新一条
$ret = $collection->updateOne(array('id' => 2), array('$set' => array('age' => 56)));
更新多条
$ret = $collection->updateMany(array('id' => ['$gt' => 1]), array('$set' => array('age' => 56, 'name' => 'x')));
删除一条
$ret = $collection->deleteOne(array('id' => 2));
删除多条
$collection->deleteMany(array('id' => array('$in' => array(1, 2))));
聚合
$ops = [ [ '$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); }
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