array mixed with objects and more arrays

Question

var_dump of my array shows up like this. I want to get the count of my_options in the array. note that index 2 has no options. How' I go about doing that

var_dump($myVar);


array
  0 => 
    object(app\models\Product)[209]
      protected '_Nested' => 
        array
          empty
      protected '_Sibling' => 
        array
          empty
      protected '_class' => string 'app\models\Customer' (length=18)
      protected '_data' => 
        array
          '_id' => int 345543
          'customer_name' => string 'John Dee' (length=14)
          'Sibling' => 
            array
              ...
          'my_options' => 
            array
              ...
          'Nesting' => 
            array
              ...
          'image' => string 'img.jpg' (length=35)
          'inventory' => 
            array
              ...
          'name' => string 'papa john' (length=35)
          'price' => float 26
          'status' => int 1
1 => 
    object(app\models\Product)[209]
      protected '_Nested' => 
        array
          empty
      protected '_Sibling' => 
        array
          empty
      protected '_class' => string 'app\models\Customer' (length=18)
      protected '_data' => 
        array
          '_id' => int 89237
          'customer_name' => string 'Linda Arap' (length=14)
          'Sibling' => 
            array
              ...
          'my_options' => 
            array
              ...
          'Nesting' => 
            array
              ...
          'image' => string 'img2.jpg' (length=35)
          'inventory' => 
            array
              ...
          'name' => string 'Pizza Hut' (length=35)
          'price' => float 26
          'status' => int 1
2 => 
    object(app\models\Product)[209]
      protected '_Nested' => 
        array
          empty
      protected '_Sibling' => 
        array
          empty
      protected '_class' => string 'app\models\Customer' (length=18)
      protected '_data' => 
        array
          '_id' => int 89237
          'customer_name' => string 'Linda Arap' (length=14)
          'Sibling' => 
            array
              ...

Mike B · Accepted Answer · 2012-08-03 01:27:52Z

3

_data is a protected variable so you won't be able to access it from outside the object. You'll need to use (or create) a getData() method that accesses$this->_data. Just call that method and you'll have access to the options array.

Example method that accesses _data and returns my_options all in one:

public function getMyOptions() {
  return $this->_data['my_options'];
}

Which can be invoked with something like:

$product instanceof app\models\Product;
$myOptions = $product->getMyOptions();

Also, it looks like you're using a model (possibly orm) class. I would imagine it has built-in methods to access the data array. Common methods to access my_options would be:

$options = $product->my_options; // via magic methods
$options = $product->get('my_options');
$options = $product->getField('my_options');

edited Aug 3, 2012 at 1:27

answered Aug 3, 2012 at 1:19

Mike B

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Comments

nickl- · Accepted Answer · 2012-08-05 00:37:10Z

If I were you, I wouldn't let a little syntactic sugar like property visibility get between me and my data.

How do I access a private or protected property of an object?

With ReflectionProperty why of course =)

This should do the trick:

$my_options_count = array_map(function ($object) {
    $reflect = new ReflectionObject($object);
    foreach ($reflect->getProperties() as $prop)
         if ($prop->name == '_data') {
             $prop->setAccessible(true);
             $data = $prop->getValue($object);
            if (array_key_exists('my_options', $data))
                if (is_array($my_options = $data['my_options']))
                    return count($my_options);
         }
   return 0;
}, $myVar);

$my_options_count will now show 0 for the records without a my_options or the number of options for each record. If you were after the total my options from all the records then array_sum is your friend =)

$my_options_total = array_sum($my_options_count);

Never say never and always keep trying. Njoy!

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