Php 在他们的ORM中这样做，类似于@ethrbunny所建议的。但是，当从数据库中运行选择时，这会起作用吗？我想我的问题还不够清楚。我真的希望运行一个查询，其中可能包括连接（出于性能原因）。然后，在查询完成后，我不确定处理数据的最佳方式是什么-作为数组还是作为

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在他们的ORM中这样做，类似于@ethrbunny所建议的。但是，当从数据库中运行

选择
时，这会起作用吗？我想我的问题还不够清楚。我真的希望运行一个查询，其中可能包括连接（出于性能原因）。然后，在查询完成后，我不确定处理数据的最佳方式是什么-作为数组还是作为对象。@Jonathan，然后您必须创建组合模型类，然后逐步进行处理。
foreach ($members as $member)
{
    echo $member->full_name();
    echo $member->age();
}

SELECT IFNULL(SUM(table2.big_name),0) AS sumBig

...


$result=$PDO->fetchObject();
$sum=$result->sumBig;

$conn = DBConnection::_getSubjectsDB();  
$query = "select * from studies where Status = 1";  
$st = $conn->prepare( $query );  

$st->execute();  
$rows = $st->fetchAll();  
foreach ( $rows as $row )  
{  
    $study = (object)array();  
    $study->StudyId = $row[ 'StudyId' ];  
    $study->Name = $row[ 'StudyName' ];  
    $study->Investigator = $row[ 'Investigator' ];  
    $study->StartDate = $row[ 'StartDate' ];  
    $study->EndDate = $row[ 'EndDate' ];  
    $study->IRB = $row[ 'IRB' ];  

    array_push( $ret, $study );  
} 

/** Single location info
*/
class Location  
{  
    /** Name  
    * @var string  
    */  
    public $Name;  

    /** Address  
    * @var string  
    */  
    public $Address;  

    /** City  
    * @var string  
    */  
    public $City;

    /** State
    * @var string
    */
    public $State;

    /** Zip
    * @var string
    */
    public $Zip;

    /** getMailing
    * Get a 'mailing label' style output
    */
    function getMailing()
    {  
         return $Name . "\n" . $Address . "\n" . $City . "," . $State . "  " . $Zip;
    }
}

$conn = DBConnection::_getLocationsDB();  
$query = "select * from Locations where Status = 1";  
$st = $conn->prepare( $query );  

$st->execute();  
$rows = $st->fetchAll();  
foreach ( $rows as $row )  
{  
    $location = new Location();  
    $location->Name= $row[ 'Name' ];  
    $location->Address = $row[ 'Address ' ];  
    $location->City = $row[ 'City' ];  
    $location->State = $row[ 'State ' ];  
    $location->Zip = $row[ 'Zip ' ];  

    array_push( $ret, $location );  
} 

foreach( $ret as $location )
{ 
    echo $location->getMailing();
}

stdClass Object
(
    [id] => 1
    [title] => Article Title
    [published] => 2013-03-04 16:30:00
    [category] => stdClass Object
        (
            [id] => 1
            [name] => Category Name
        )

)

<?php echo $article->category->name; ?>

<?php echo $article->getCategory()->getName(); ?>

class Member_Details {
    public $id;    
    public $first_name;
    public $last_name;

    public function FullName() {
         return $this -> first_name." ".$this -> last_name;
    }
}

class Member_Address {
    public $id;
    public $address;
    public $city;
}

class MemberJoins {
     public $objects = array();
}

$obj_details = new Member_Details();
$obj_address = new Member_Address();
//Add data to the objects and then

//Then create the join object
$obj_address_details = new MemberJoins();
$obj_address_details -> objects = array($obj_details, $obj_address);