제네릭 객체 [stdClass ()]를 사용하고 배열로 캐스팅하면 질문에 대한 답변을 얻을 수 있지만 컴포 지터가 큰 답변이라고 생각합니다. 그러나 일부 기능 향상을 사용할 수 있으며 다른 사람에게 유용 할 수 있다고 생각했습니다.
풍모:
- 참조 또는 복제본 지정
- 우선 순위를 지정할 첫 번째 또는 마지막 항목을 지정하십시오.
- array_merge와 구문이 유사한 다중 (2 개 이상) 객체 병합
- 메소드 연결 : $ obj-> f1 ()-> f2 ()-> f3 () ...
- 동적 합성 : $ obj-> merge (...) / * 여기서 작동 * / $ obj-> merge (...)
암호:
class Compositor {
protected $composite = array();
protected $use_reference;
protected $first_precedence;
/**
* __construct, Constructor
*
* Used to set options.
*
* @param bool $use_reference whether to use a reference (TRUE) or to copy the object (FALSE) [default]
* @param bool $first_precedence whether the first entry takes precedence (TRUE) or last entry takes precedence (FALSE) [default]
*/
public function __construct($use_reference = FALSE, $first_precedence = FALSE) {
// Use a reference
$this->use_reference = $use_reference === TRUE ? TRUE : FALSE;
$this->first_precedence = $first_precedence === TRUE ? TRUE : FALSE;
}
/**
* Merge, used to merge multiple objects stored in an array
*
* This is used to *start* the merge or to merge an array of objects.
* It is not needed to start the merge, but visually is nice.
*
* @param object[]|object $objects array of objects to merge or a single object
* @return object the instance to enable linking
*/
public function & merge() {
$objects = func_get_args();
// Each object
foreach($objects as &$object) $this->with($object);
// Garbage collection
unset($object);
// Return $this instance
return $this;
}
/**
* With, used to merge a singluar object
*
* Used to add an object to the composition
*
* @param object $object an object to merge
* @return object the instance to enable linking
*/
public function & with(&$object) {
// An object
if(is_object($object)) {
// Reference
if($this->use_reference) {
if($this->first_precedence) array_push($this->composite, $object);
else array_unshift($this->composite, $object);
}
// Clone
else {
if($this->first_precedence) array_push($this->composite, clone $object);
else array_unshift($this->composite, clone $object);
}
}
// Return $this instance
return $this;
}
/**
* __get, retrieves the psudo merged object
*
* @param string $name name of the variable in the object
* @return mixed returns a reference to the requested variable
*
*/
public function & __get($name) {
$return = NULL;
foreach($this->composite as &$object) {
if(isset($object->$name)) {
$return =& $object->$name;
break;
}
}
// Garbage collection
unset($object);
return $return;
}
}
용법:
$obj = new Compositor(use_reference, first_precedence);
$obj->merge([object $object [, object $object [, object $...]]]);
$obj->with([object $object]);
예:
$obj1 = new stdClass();
$obj1->a = 'obj1:a';
$obj1->b = 'obj1:b';
$obj1->c = 'obj1:c';
$obj2 = new stdClass();
$obj2->a = 'obj2:a';
$obj2->b = 'obj2:b';
$obj2->d = 'obj2:d';
$obj3 = new Compositor();
$obj3->merge($obj1, $obj2);
$obj1->c = '#obj1:c';
var_dump($obj3->a, $obj3->b, $obj3->c, $obj3->d);
// obj2:a, obj2:b, obj1:c, obj2:d
$obj1->c;
$obj3 = new Compositor(TRUE);
$obj3->merge($obj1)->with($obj2);
$obj1->c = '#obj1:c';
var_dump($obj3->a, $obj3->b, $obj3->c, $obj3->d);
// obj1:a, obj1:b, obj1:c, obj2:d
$obj1->c = 'obj1:c';
$obj3 = new Compositor(FALSE, TRUE);
$obj3->with($obj1)->with($obj2);
$obj1->c = '#obj1:c';
var_dump($obj3->a, $obj3->b, $obj3->c, $obj3->d);
// obj1:a, obj1:b, #obj1:c, obj2:d
$obj1->c = 'obj1:c';