使用php從mongoDB獲得價值

Question

如何使用'php'獲取街道價值？

{ 

    _id : "001", 

    name : "fakename", 

    address : { 

       street : "12 Street", 

       city : "Cosmos", 

       } 
} 

查詢：

$collection = database_name->collection_name; 

$cursor = $collection->find (array('name' => 'fakename'), array('address.street')); 

    foreach ($cursor as $doc) { 

     echo $doc[ 'address.street' ]; 
    } 

結果：

$doc[ 'address.street' ] 

價值沒有得到打印。

Answer 1

$db = (new \MongoDB\Client("mongodb://localhost:27017"))->database_name; 
$collection = $db->collection_name; 
$cursor = $collection->find (array('name' => 'fakename'), array('address.street')); 
foreach ($cursor as $doc) { 
    echo $doc['address']['street']; 
} 

Answer 2

PHP使用多維數組：

$doc['address']['street']