我正在研究一个函数以递归方式删除数组和对象。问题在于某些递归可能位于对象的私有属性中。
下面是我尝试过的以及尝试使用的条目。
这是我的入口
class TestOBJ{
private $fooClosure = null;
public $bar = 5;
private $myPrivateRecursion = null;
private $aimArrayAndContainsRecursion = [];
public function __construct()
{
$this->fooClosure = function(){
echo 'pretty closure';
};
}
public function setMyPrivateRecursion(&$obj){
$this->myPrivateRecursion = &$obj;
}
public function setObjInsideArray(&$obj){
$this->aimArrayAndContainsRecursion[] = &$obj;
}
}
$std = new stdClass();
$std->std = 'any str';
$std->obj = new stdClass();
$std->obj->other = &$std;
$obj = new TestOBJ();
$obj->bar = new TestOBJ();
$obj->bar->bar = 'hey brow, please works';
$obj->bar->setMyPrivateRecursion($std);
我的入口是var $obj
这是我的功能/解决方案
function makeRecursionStack($vector, &$stack = [], $from = null)
{
if ($vector) {
if (is_object($vector) && !in_array($vector, $stack, true) && !is_callable($vector)) {
$stack[] = &$vector;
if (get_class($vector) === 'stdClass') {
foreach ($vector as $key => $value) {
if (in_array($vector->{$key}, $stack, true)) {
$vector->{$key} = null;
} else {
$vector->{$key} = $this->makeRecursionStack($vector->{$key}, $stack, $key);
}
}
return $vector;
} else {
$object = new \ReflectionObject($vector);
$reflection = new \ReflectionClass($vector);
$properties = $reflection->getProperties();
if ($properties) {
foreach ($properties as $property) {
$property = $object->getProperty($property->getName());
$property->setAccessible(true);
if (!is_callable($property->getValue($vector))) {
$private = false;
if ($property->isPrivate()) {
$property->setAccessible(true);
$private = true;
}
if (in_array($property->getValue($vector), $stack, true)) {
$property->setValue($vector, null);
} else {
//if($property->getName() === 'myPrivateRecursion' && $from === 'bar'){
//$get = $property->getValue($vector);
//$set = $this->makeRecursionStack($get, $stack, $property->getName());
//$property->setValue($vector, $set);
//pre_clear_buffer_die($property->getValue($vector));
//}
$property->setValue($vector, $this->makeRecursionStack($property->getValue($vector), $stack, $property->getName()));
}
if ($private) {
$property->setAccessible(false);
}
}
}
}
return $vector;
}
} else if (is_array($vector)) {
$nvector = [];
foreach ($vector as $key => $value) {
$nvector[$key] = $this->makeRecursionStack($value, $stack, $key);
}
return $nvector;
} else {
if (is_object($vector) && !is_callable($vector)) {
return null;
}
}
}
return $vector;
}
我有意见的地方就是我注意到问题的地方。如果在此处未对If进行注释,$get
将收到具有递归的stdClass,并且可以正常工作,而$set
将收到没有递归的stdClass。按此顺序。
$get
=
$set
=
此行之后
$property->setValue($vector, $set);
pre_clear_buffer_die($property->getValue($vector));
我得到了这个
我尝试将其他值(例如bool或null)放入属性中,并在设置$set
之后将其设置为无效。
P.S:pre_clear_buffer_die
杀死php缓冲区,初始化其他缓冲区,并在退出脚本后在<pre>
中显示var。是调试器功能。