#51015 [Opn->Bgs]: Array keys can not be used to get values

From: Date: Fri, 12 Feb 2010 16:45:45 +0000
Subject: #51015 [Opn->Bgs]: Array keys can not be used to get values
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-147479@lists.php.net to get a copy of this message 
 ID:               51015
 Updated by:       jani@php.net
 Reported By:      nat at search dot ch
-Status:           Open
+Status:           Bogus
 Bug Type:         *General Issues
 Operating System: Linux #1 SMP 2009-08-15 17:53:59
 PHP Version:      5.3.1
 New Comment:

RTFM:

http://php.net/array#language.types.array.casting

"If an object is converted to an array, the result is an array whose
elements are the object's properties. The keys are the member variable
names, with a few notable exceptions: integer properties are
unaccessible.."

And you could also access those directly without casting anyway, like
this:

var_dump($model->choices->{1});





Previous Comments:
------------------------------------------------------------------------

[2010-02-11 13:57:10] nat at search dot ch

Description:
------------
In an associative array with number as text keys, the keys can not be
used to get the values. "Foreach" works.

  var_dump($choices);      
// array(2) { ["1"]=>  array(2) { [0]=>  string(1) "0" [1]=>  string(1)
"1" } ["0"]=>  array(2) { [0]=>  string(1) "0" [1]=> 
string(1) "1" } }

  var_dump($choices['1']); // NULL
  var_dump($choices[1]);   // NULL
  var_dump($choices["1"]); // NULL
  var_dump($choices->{1}); // NULL
  var_dump($choices->{'1'});//NULL
  var_dump($choices['0']);  //NULL
  var_dump($choices[0]);    //NULL

 foreach ($choices as $k => $v) {
    var_dump($k, $v);
  }

// string(1) "1" array(2) { [0]=> string(1) "0" [1]=> string(1)
"1" }
// string(1) "0" array(2) { [0]=> string(1) "0" [1]=> string(1)
"1" }


Reproduce code:
---------------
$db_data_model='{"events":{"1":"film","0":"avatar"},"times":{"0":"2010-10-09
08:00","2":"2010-10-09
11:00","3":"2010-09-09"},"choices":{"1":["0","1"],"0":["0","1"]}}';
$model = json_decode($db_data_model);
$choices = (array)$model->choices;
var_dump($choices);
var_dump($choices['1']); // NULL
var_dump($choices[1]);   // NULL
var_dump($choices->{1}); // NULL
var_dump($choices->{'1'});//NULL

foreach ($choices as $k => $v) {
    var_dump($k, $v);
}



Expected result:
----------------
var_dump($choices['1']);

// array(2) { [0]=> string(1) "0" [1]=> string(1) "1" }

var_dump($choices['0']);

// array(2) { [0]=> string(1) "0" [1]=> string(1) "1" }

Actual result:
--------------
var_dump($choices['1']);

// NULL

var_dump($choices['0']);

// NULL


------------------------------------------------------------------------


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