Converting multidimensional object to array - php

Question

I have a following object:
object(Intro\IntroBundle\Entity\User)#333 (6) {
["id":"Intro\IntroBundle\Entity\User":private]=>
int(3)
["username":"Intro\IntroBundle\Entity\User":private]=>
string(3) "aaa"
["email":"Intro\IntroBundle\Entity\User":private]=>
string(9) "aa#aa.com"
["password":"Intro\IntroBundle\Entity\User":private]=>
string(4) "a1a1"
["age":"Intro\IntroBundle\Entity\User":private]=>
int(10)
["dateCreated":"Intro\IntroBundle\Entity\User":private]=>
object(DateTime)#330 (3) {
["date"]=>
string(26) "2011-01-01 01:01:00.000000"
["timezone_type"]=>
int(3)
["timezone"]=>
string(13) "Europe/Berlin"
}
}
I used methods:
array($entity);
json_decode(json_encode($entity), true);
get_object_vars ($entity);
and with a personal method
private function objToArray($obj){
$arr = array();
if(!is_object($obj) && !is_array($obj)){
$arr = $obj;
die("invalid data");
}
foreach ($obj as $key => $value)
{
if (!empty($value))
{
$arr[$key] = array();
objToArray($value, $arr[$key]);
}
else
{
$arr[$key] = $value;
}
}
return $arr;
}
All those methods return an empty array. Please tell me why? I mention that my object input ($entity) is not empty.
And also please don't give me dislike if you do not know the answer.

Answer 1

Your object's properties are private. If you var_dump() an object as you did it prints also private properties.
Have a look at this article http://php.net/manual/en/language.oop5.iterations.php. You can iterate object as you do but it iterates only public properties.

Answer 2

First of all, we can't see the scope. All your code is private (object properties and the method). Show the scope and we can help you better.
The problem seems to be here:
if (!empty($value))
{
$arr[$key] = array();
objToArray($value, $arr[$key]);
}
You are passing a second argument that doesn't defined in the method
private function objToArray($obj){...}
So you are passing a value to objToArray(), that value is a string I guess, and when it reach this line:
$arr = array();
if(!is_object($obj) && !is_array($obj)){
$arr = $obj;
die("invalid data");
}
Then it will display "invalid data", and empty your array.