Question

I am having a multi dimensional array as given before with std objects as well

    Array
(
    [0] => abc_Object Object
        (
            [_api:protected] => zvbj
            [_values:protected] => Array
                (
                    [count] => 2
                    [data] => Array
                        (
                            [0] => abc_Charge Object
                                (
                                    [_api:protected] => zvbj
                                    [_values:protected] => Array
                                        (
                                            [id] => dGoEw 
                                            [ine] => fKYF0a
                                            [xyz] => abc_Object Object
                                                (
                                                    [_api:protected] => zvbj
                                                    [_values:protected] => Array
                                                        (
                                                            [id] => uUmuym
                                                            [last] => 4242
                                                        )
                                                )
                                        )
                                )
                            [1] => abc_Charge Object
                                (
                                    [_api:protected] => zvbj
                                    [_values:protected] => Array
                                        (
                                            [id] => dblvEw 
                                            [ine] => fKyyu0a
                                            [xyz] => abc_Object Object
                                                (
                                                    [_api:protected] => z7jj
                                                    [_values:protected] => Array
                                                        (
                                                            [id] => urtuym
                                                            [last] => 4242
                                                        )
                                                )
                                        )
                                )
                        )
                )
        )
    [1] => abc_Object Object
        (
            [_api:protected] => zvbj
            [_values:protected] => Array
                (
                    [count] => 2
                    [data] => Array
                        (
                            [0] => abc_Charge Object
                                (
                                    [_api:protected] => zvbj
                                    [_values:protected] => Array
                                        (
                                            [id] => dGoEw 
                                            [ine] => fKYF0a
                                            [xyz] => abc_Object Object
                                                (
                                                    [_api:protected] => zvbj
                                                    [_values:protected] => Array
                                                        (
                                                            [id] => uUmuym
                                                            [last] => 4242
                                                        )
                                                )
                                        )
                                )
                            [1] => abc_Charge Object
                                (
                                    [_api:protected] => zvbj
                                    [_values:protected] => Array
                                        (
                                            [id] => dblvEw 
                                            [ine] => fKyyu0a
                                            [xyz] => abc_Object Object
                                                (
                                                    [_api:protected] => z7jj
                                                    [_values:protected] => Array
                                                        (
                                                            [id] => urtuym
                                                            [last] => 4242
                                                        )
                                                )
                                        )
                                )
                        )
                )
        )                       
)

I am trying to combine all these into a much simpler array as

Array(
[0]=>(
        [id] => dGoEw 
        [ine] => fKYF0a
        [cid] => uUmuym
    )
[1]=>(
        [id] => dblvEw 
        [ine] => fKyyu0a
        [cid] => urtuym
    )
[2]=>(
        [id] => dGoEw 
        [ine] => fKYF0a
        [cid] => uUmuym
    )
[3]=>(
        [id] => dblvEw 
        [ine] => fKyyu0a
        [cid] => urtuym
    )
)

I have tried alot of foreach looping and stuff but i am not able to even print first value of the array. I dont know what i am missing.

echo $arr['_api:protected'];

EDIT

foreach($arr as $key=>$val)
        {
            echo $val['_api:protected'];
            print_r($val['_values:protected']);
        }

No ouput from this even

foreach($arr as $key=>$val)
        {
            $aaa = $val['_values:protected']['data'];
            $arr111['id'] = $aaa['_values:protected']['invoice'];
            $arr111['ine'] = $aaa['_values:protected']['id'];
            $arr111['cid'] = $aaa['_values:protected']['xyz']['_values:protected']['id'];
            $arr222[] = $arr111;
        }
        print_r($arr222);

is also not giving me any output. Can anyone please tell me what i am missing?

Answer 1

Because the properties you are trying to access are defined as protected they cannot be accessed unless you are in the context of the class of the object, or a class the extends the class of the object. The :protected that you see on the end of the key is not part of the name, it is telling you that the property is defined as protected. So the name of the key is not _values:protected, it is _values and it’s visibility is set to protected.

Here is a slightly horrible solution with two classes that should allow you to fetch the data from a valid context:

<?php

  class simplifier_Object extends abc_Object {

    public static function getIdFromObj ($obj) {
      return $obj->_values['id'];
    }
    public static function getDataFromObj ($obj) {
      return $obj->_values['data'];
    }

  }

  class simplifier_Charge extends abc_Charge {

    public static function getIdFromObj ($obj) {
      return $obj->_values['id'];
    }
    public static function getIneFromObj ($obj) {
      return $obj->_values['ine'];
    }
    public static function getXyzFromObj ($obj) {
      return $obj->_values['xyz'];
    }

  }

  // Assuming that your input array is held in $arr

  $result = array();
  foreach ($arr as $item) {
    foreach (simplifier_Object::getDataFromObj($item) as $sub) {
      $xyz = simplifier_Charge::getXyzFromObj($sub);
      $result[] = array (
        'id' => simplifier_Charge::getIdFromObj($sub),
        'ine' => simplifier_Charge::getIneFromObj($sub),
        'cid' => simplifier_Object::getIdFromObj($xyz)
      );
    }
  }

  var_dump($result);

If abc_Object extends abc_Charge or vice versa, it would be possible to wrap this in a single class that extends the child object, but it still wouldn’t be a beautiful solution – someone with a better OO head than mine may have a better idea.

As a side note, you should have error_reporting(E_ALL); ini_set('display_errors', 1); at the top of your script while developing. If you had, you would have seen many error messages with your code samples above to give you a clue what the problem is.