php操作mongodb：添删改查

1：插入数据

例：向默认的test数据库的wj表中插入数据

$manager = new MongoDBDriverManager("mongodb://localhost:27017");  

// 插入数据
$bulk = new MongoDBDriverBulkWrite;
$bulk->insert(['id' => 1, 'name'=>'测试', 'url' => 'http://www.百度.com']);
$manager->executeBulkWrite('test.wj', $bulk);

2：查询数据

查询test数据库的wj表中name值不为测试的数据

$manager = new MongoDBDriverManager("mongodb://localhost:27017");  
$filter = ['name' => '测试'];
$options = [
    'projection' => ['_id' => 0],
    'sort' => ['name' => -1],
];
$query = new MongoDBDriverQuery($filter, $options);
$cursor = $manager->executeQuery('test.wj', $query);
foreach ($cursor as $document) {
    print_r($document);
}

3:更新数据

将test数据库中的wj表中id为1的数据中name字段变为测试1234，

$bulk = new MongoDBDriverBulkWrite;
$bulk->update(
    ['id' => 1],
    ['$set' => ['name' => '测试1234']],
    ['multi' => false, 'upsert' => false]  #multi表示只更新一条数据，upsert表示如果不存在update的记录，不进行插入操作
);
$manager = new MongoDBDriverManager("mongodb://localhost:27017");  
$writeConcern = new MongoDBDriverWriteConcern(MongoDBDriverWriteConcern::MAJORITY, 1000);
$result = $manager->executeBulkWrite('test.wj', $bulk, $writeConcern);

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4：删除数据

$bulk = new MongoDBDriverBulkWrite;
$bulk->delete(['id' => 1], ['limit' => 1]);   // limit 为 1 时，删除第一条匹配数据
$bulk->delete(['id' => 2], ['limit' => 0]);   // limit 为 0 时，删除所有匹配数据
$manager = new MongoDBDriverManager("mongodb://localhost:27017");  
$writeConcern = new MongoDBDriverWriteConcern(MongoDBDriverWriteConcern::MAJORITY, 1000);
$result = $manager->executeBulkWrite('test.wj', $bulk, $writeConcern);