### Connect
- - -
```
use MongoDB\Client;
$con = new Client("mongodb://127.0.0.1:27017", array("username" => "xxxx", "password" => "yyyy"));
```
### Find
- - -
```
$filter = ['field' => 'value'];
$option = ['sort' => ['_id' => -1 ], 'limit' => 10];
# -1 is desc, 1 is asc
$data = $con->database->collection->find($filter,$option);
foreach($data as $value){
echo $value['_id'];
}
```

### Insert
- - -
#### Insert many row
```
#Connect Database
$manager = new MongoDB\Driver\Manager("mongodb://127.0.0.1:27017", array("username" => "xxxx", "password" => "yyyyy"));
$bulk = new MongoDB\Driver\BulkWrite(['ordered' => false]);
#Preparing data
$bulk->insert([
    'field1' => 'value1',
    'field2' => 'value2',
    'field3' => 'value3'
]);
$bulk->insert([
    'field1' => 'value4',
    'field2' => 'value5',
    'field3' => 'value6'
]);

#Insert data
try {
    $result = $manager->executeBulkWrite('database.collection', $bulk);
} catch (MongoDB\Driver\Exception\BulkWriteException $e) {
    var_dump($e->getWriteResult()->getWriteErrors());
}
```
Null, not null and compare
```
#Where field not null
'field' => ['$exists' => true ]
```
### Update
- - -
### UpdateOne
- - -
```
$updatedResult = $collection->updateOne(
    ['_id' => new MongoDB\BSON\ObjectId($id)],
    ['$set' => [
            'field1'    => 'value1',
            'field2'    => 'value2',
    ]
);
```
### Delete
- - -