Problem getting value from multi-dim-array

Question

The following code:

      $options = $value[$i]['options'];
      print_r($options);

outputs the following result:

Array ( 
  [0] => stdClass Object ( 
        [id] => 1 
        [field_id] => 1 
        [option_name] => I'm a normal user ) 
  [1] => stdClass Object ( 
        [id] => 2 
        [field_id] => 1 
        [option_name] => Store owner ) 
  [2] => stdClass Object ( 
        [id] => 3 
        [field_id] => 1 
        [option_name] => Brand owner ) 
  [3] => stdClass Object ( 
        [id] => 4 
        [field_id] => 1 
        [option_name] => Designer ) 
)

So why can't I output "I'm a normal user" using echo $options[0]["option_name"] ?

My plan is to output id and option_name using a foreach loop:

  foreach ($options as $option)
  {
    echo "<option value='".$option["id"]."'>".$option["option_name"]."</option>";
  }

This should be easy.... but I'm fumbling :(

Tomas Markauskas · Accepted Answer · 2010-01-24 22:50:45Z

3

The second level is not an array but an object. This would be correct:

$options[0]->option_name

answered Jan 24, 2010 at 22:50

Tomas Markauskas

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1 Comment

Steven Over a year ago

Ahm thanks. You get the points, since you where the first to answer :)

Tyler Carter · Accepted Answer · 2010-01-24 22:48:29Z

3

Try using this in the foreach

$option->option_name;
$option->id;

$options is actually an object. Thats why you see it is an instance of stdClass. Each value in that class is accessed through the -> accessor.

BTW, you can access it regularly like this:

$options[0]->option_name;
$options[0]->id;

answered Jan 24, 2010 at 22:48

Tyler Carter

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Comments

Erik · Accepted Answer · 2010-01-24 22:55:49Z

0

Do keep in mind if you assign one of those values to a new variable, you're getting an object, not a string. You can fix that by doing something like this:

$string = (string)$options[0]->option_name;

This isn't an issue if you're simply outputting the way your example shows, but would matter more if you were using the value as, say, an array key. Example:

$array[$options[0]->id] == $array[1]; // FALSE!!
$array[(string)$options[0]->id] == $array[1] // True.

answered Jan 24, 2010 at 22:55

Erik

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