原文链接: http://www.zhaokeli.com/article/8574.html
MongoDb原生操作
Mongodb连接
PHP7 连接 MongoDB 语法如下：
复制代码$manager = new MongoDBDriverManager("mongodb://localhost:27017");
插入数据
将 name 为"自学教程" 的数据插入到 test 数据库的 runoob 集合中。
复制代码$bulk = new MongoDBDriverBulkWrite;
$document = ['_id' => new MongoDBBSONObjectID, 'name' => '菜鸟教程'];
$_id= $bulk->insert($document);
var_dump($_id);
$manager = new MongoDBDriverManager("mongodb://localhost:27017");
$writeConcern = new MongoDBDriverWriteConcern(MongoDBDriverWriteConcern::MAJORITY, 1000);
$result = $manager->executeBulkWrite('test.runoob', $bulk, $writeConcern);
读取数据
复制代码$manager = new MongoDBDriverManager("mongodb://localhost:27017");
// 插入数据
$bulk = new MongoDBDriverBulkWrite;
$bulk->insert(['x' => 1, 'name'=>'baidu', 'url' => 'http://www.baidu.com']);
$bulk->insert(['x' => 2, 'name'=>'Google', 'url' => 'http://www.google.com']);
$bulk->insert(['x' => 3, 'name'=>'taobao', 'url' => 'http://www.taobao.com']);
$manager->executeBulkWrite('test.sites', $bulk);
$filter = ['x' => ['$gt' => 1]];
$options = [
'projection' => ['_id' => 0],
'sort' => ['x' => -1],
];
// 查询数据
$query = new MongoDBDriverQuery($filter, $options);
$cursor = $manager->executeQuery('test.sites', $query);
foreach ($cursor as $document) {
print_r($document);
}
更新数据
复制代码$bulk = new MongoDBDriverBulkWrite;
$bulk->update(
['x' => 2],
['$set' => ['name' => '菜鸟工具', 'url' => 'tool.runoob.com']],
['multi' => false, 'upsert' => false]
);
$manager = new MongoDBDriverManager("mongodb://localhost:27017");
$writeConcern = new MongoDBDriverWriteConcern(MongoDBDriverWriteConcern::MAJORITY, 1000);
$result = $manager->executeBulkWrite('test.sites', $bulk, $writeConcern);
删除数据
复制代码$bulk = new MongoDBDriverBulkWrite;
$bulk->delete(['x' => 1], ['limit' => 1]); // limit 为 1 时，删除第一条匹配数据
$bulk->delete(['x' => 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.sites', $bulk, $writeConcern);
MongoDB官方操作库
看完上面的CURD操作是不是感觉有点懵逼，操作方式跟想像中的完全不一样，
可能官方也想到啦这一块，于是又封装啦一个操作库让大家使用。文档地址如下
https://docs.mongodb.com/php-library/current/tutorial/crud/
安装
复制代码composer require mongodb/mongodb
添加数据
插入单条数据
在数据库test中的users集合中插入数据，如果数据库或集合不存在则会自动创建
复制代码$collection = (new MongoDBClient)->test->users;
$insertOneResult = $collection->insertOne([
'username' => 'admin',
'email' => 'admin@example.com',
'name' => 'Admin User',
]);
printf("Inserted %d document(s)
", $insertOneResult->getInsertedCount());
var_dump($insertOneResult->getInsertedId());
输出结果
数据库中数据
可以看出返回$oid为数据库自动分配的唯一标识，如果我们插入的时候传入id值的话，mongodb会判断这个id是否存在，如果存在就会报错，如果不存在则直接返回传入的id值
复制代码$collection = (new MongoDBClient)->test->users;
$insertOneResult = $collection->insertOne(['_id' => 1, 'name' => 'Alice']);
printf("Inserted %d document(s)
", $insertOneResult->getInsertedCount());
var_dump($insertOneResult->getInsertedId());
执行结果
插入多条数据
复制代码$collection = (new MongoDBClient)->test->users;
$insertManyResult = $collection->insertMany([
[
'username' => 'admin',
'email' => 'admin@example.com',
'name' => 'Admin User',
],
[
'username' => 'test',
'email' => 'test@example.com',
'name' => 'Test User',
],]);
printf("Inserted %d document(s)
", $insertManyResult->getInsertedCount());
var_dump($insertManyResult->getInsertedIds());
查询数据
如果要使用id查询,则需要使用下面的ObjectId类来封装下传进去
使用自增id查询
复制代码$collection = (new MongoDBClient)->test->users;
$id = new MongoDBBSONObjectId('5cecd708ab4e4536fc0076e2');
$document = $collection->findOne(['_id' => $id]);
var_dump($document);
其它条件查询
使用其它条件数据则直接传进去就可以
复制代码$collection = (new MongoDBClient)->test->users;
$document = $collection->findOne(['username' => 'admin']);
var_dump($document);
使用limit,sort,skip查询
默认情况下是返回所有的字段数据，也可以指定字段返回，limit是返回的行数，sort是使用name字段-1为降序，1为升序，skip为跳过前多少条数据如下
$collection = (new MongoDBClient)->test->users;
$cursor = $collection->find(
[
'username' => 'admin',
],
[
'projection' => [
'email' => 1,
],
'limit' => 4,
'sort' => ['name' => -1],
'skip' =>1,
]);
foreach ($cursor as $restaurant) {
var_dump($restaurant);
}
正则条件查询
$collection = (new MongoDBClient)->test->users;
$cursor = $collection->find(
[
'username' => new MongoDBBSONRegex('^ad', 'i'),
],
[
'projection' => [
'email' => 1,
],
'limit' => 1,
'sort' => ['pop' => -1],
]);
foreach ($cursor as $restaurant) {
var_dump($restaurant);
}
另外一种正则式的写法
$collection = (new MongoDBClient)->test->users;
$cursor = $collection->find(
[
'username' => ['$regex' => '^ad', '$options' => 'i'],
],
[
'projection' => [
'email' => 1,
],
'limit' => 1,
'sort' => ['pop' => -1],
]);
foreach ($cursor as $restaurant) {
var_dump($restaurant);
}
查询多个数据
$collection = (new MongoDBClient)->test->users;
$cursor = $collection->find(['username' => 'admin']);
foreach ($cursor as $document) {
echo $document['_id'], "
";
}
更新数据
更新单条数据
$collection = (new MongoDBClient)->test->users;
$updateResult = $collection->updateOne(
['username' => 'admin'],
['$set' => ['name' => 'new nickname']]
);
printf("Matched %d document(s)
", $updateResult->getMatchedCount());
printf("Modified %d document(s)
", $updateResult->getModifiedCount());
更新多条数据
$collection = (new MongoDBClient)->test->users;
$updateResult = $collection->updateMany(
['username' => 'admin'],
['$set' => ['name' => 'new nickname']]
);
printf("Matched %d document(s)
", $updateResult->getMatchedCount());
printf("Modified %d document(s)
", $updateResult->getModifiedCount());
替换文档
替换文档其它跟更新数据类似，但是这个操作不会修改id,如下
$collection = (new MongoDBClient)->test->users;
$updateResult = $collection->replaceOne(
['username' => 'admin'],
['username' => 'admin2', 'name' => 'new nickname']
);
printf("Matched %d document(s)
", $updateResult->getMatchedCount());
printf("Modified %d document(s)
", $updateResult->getModifiedCount());
Upsert操作
这个名字应该是个缩写，更新或替换操作时如果有匹配的数据则直接操作，如果没有匹配的数据则插入一条新数据，意思是如果更新或替换操作的第三个参数如果传 'upsert'=>True 的话就可以开启这个功能
$collection = (new MongoDBClient)->test->users;
$updateResult = $collection->updateOne(
['username' => 'admin3'],
['$set' => ['username' => 'admin2', 'name' => 'new nickname']],
['upsert' => true]
);
printf("Matched %d document(s)
", $updateResult->getMatchedCount());
printf("Modified %d document(s)
", $updateResult->getModifiedCount());
printf("Upserted %d document(s)
", $updateResult->getUpsertedCount());
$upsertedDocument = $collection->findOne([
'_id' => $updateResult->getUpsertedId(),
]);
var_dump($upsertedDocument);
如果有匹配的情况下最后输出为NULl
没有匹配的情况下最后输出插入的数据
删除数据
$collection = (new MongoDBClient)->test->users;
$deleteResult = $collection->deleteOne(['username' => 'admin3']);
printf("Deleted %d document(s)
", $deleteResult->getDeletedCount());
$deleteResult = $collection->deleteMany(['username' => 'admin2']);
printf("Deleted %d document(s)
", $deleteResult->getDeletedCount());
