php--MongoDB的使用

添加

$collection = (new MongoDB\Client)->test->users;

// 增加一条
$insertOneResult = $collection->insertOne([
    'username' => 'admin',
    'email' => 'admin@example.com',
    'name' => 'Admin User',
]);

// 增加多条
$insertManyResult = $collection->insertMany([
    [
        'username' => 'admin',
        'email' => 'admin@example.com',
        'name' => 'Admin User',
    ],
    [
        'username' => 'test',
        'email' => 'test@example.com',
        'name' => 'Test User',
    ],
]);

查询

$collection = (new MongoDB\Client)->test->zips;
// 查找单条
// 根据id查
$document = $collection->findOne(['_id' => '94301']);
// 根据系统自动生成的id查
$data = $collection->findOne(['_id' => new MongoDB\BSON\ObjectId('5c841cc9b0b4f48a3a05b1e2')]);

// 查找多条
$cursor = $collection->find(['city' => 'JERSEY CITY', 'state' => 'NJ']);
// 多条件查询
$cursor = $collection->find(
// 查询条件
    [
        'cuisine' => 'Italian',
        'borough' => 'Manhattan',
        // 使用正则查询
        'city' => new MongoDB\BSON\Regex('^garden', 'i'),
        'city' => ['$regex' => '^garden', '$options' => 'i'],
    ],
    // 查询字段
    [
        'projection' => [
            'name' => 1,
            'borough' => 1,
            'cuisine' => 1,
        ],
        // 查询条数
        'limit' => 4,
        // 排序
        'sort' => ['pop' => -1],
        // 跳过条数
        ‘skip’ => 3,
    ]，
);

// 聚合
$cursor = $collection->aggregate([
    // 分组，_id为分组的依据，以下为常用表达式
    // $sum：计算总和，$sum:1同count表示计数
    // $avg：计算平均值
    // $min：获取最小值
    // $max：获取最大值
    // $push：在结果文档中插入值到一个数组中
    // $first：根据资源文档的排序获取第一个文档数据
    // $last：根据资源文档的排序获取最后一个文档数据
    ['$group' => ['_id' => '$state', 'count' => ['$sum' => 1]]],
    ['$sort' => ['count' => -1]],
    ['$limit' => 5],
    // 过滤数据
    [$match => [age => [$gt => 20]]],
]);

修改

$updateResult = $collection->updateOne(
    ['state' => 'ny'],
    ['$set' => ['country' => 'us']]
);

$updateResult = $collection->updateMany(
    ['state' => 'ny'],
    ['$set' => ['country' => 'us']]
);

删除

$deleteResult = $collection->deleteOne(['state' => 'ny']);
$deleteResult = $collection->deleteMany(['state' => 'ny']);