PHP assign one array value to another array

Question

array (
  0 => 
  array (
    'label' => '1',
    'index' => 1,
    'product_attributes' => 
    array (
      0 => 
      array (
        'type' => 'product',
        'id' => 1,
        'label' => 'Size',
        'placeholder' => 'Select Size',
        'description' => '',
        'defaultValue' => 
        array (
          'text' => 'Size32',
          'price' => '22',
          'isSelected' => false,
        ),
        'choices' => 
        array (
          0 => 
          array (
            'text' => 'Size30',
            'price' => '20',
            'isSelected' => 'true',
          ),
          1 => 
          array (
            'text' => 'Size32',
            'price' => '22',
            'isSelected' => false,
          ),
        ),
        'conditionalLogic' => '',
      ),
      1 => 
      array (
        'type' => 'product',
        'id' => 2,
        'label' => 'Color',
        'placeholder' => 'Select Color',
        'description' => 'DEsc',
        'defaultValue' => 
        array (
          'text' => 'Black',
          'price' => '5',
          'isSelected' => 'false',
        ),
        'choices' => 
        array (
          0 => 
          array (
            'text' => 'Black',
            'price' => '5',
            'isSelected' => 'false',
          ),
          1 => 
          array (
            'text' => 'Green',
            'price' => '6',
            'isSelected' => 'false',
          ),
          2 => 
          array (
            'text' => 'Blue',
            'price' => '4',
            'isSelected' => 'true',
          ),
          3 => 
          array (
            'text' => 'White',
            'price' => '1',
            'isSelected' => 'false',
          ),
        ),
        'conditionalLogic' => '',
      ),
      2 => 
      array (
        'type' => 'product',
        'id' => 3,
        'label' => 'Fit',
        'placeholder' => 'Select Fit',
        'description' => 'Select Fit',
        'defaultValue' => 
        array (
        ),
        'choices' => 
        array (
          0 => 
          array (
            'text' => 'Slim',
            'price' => '2',
            'isSelected' => false,
          ),
          1 => 
          array (
            'text' => 'Regular',
            'price' => '3',
            'isSelected' => false,
          ),
          2 => 
          array (
            'text' => 'Casual',
            'price' => '5',
            'isSelected' => false,
          ),
        ),
        'conditionalLogic' => '',
      ),
    ),
    'total_product_cost' => '$27.00',
    'total_product_price' => '27.00',
    'product_id' => '36',
  ),
  1 => 
  array (
    'label' => 'label21',
    'total_product_cost' => '$27.00',
    'total_product_price' => '27.00',
    'index' => 3,
    'product_id' => '36',
    'product_attributes' => 
    array (
      0 => 
      array (
        'type' => 'product',
        'id' => 1,
        'label' => 'Size',
        'placeholder' => 'Select Size',
        'description' => '',
        'defaultValue' => 
        array (
          'text' => 'Size32',
          'price' => '22',
          'isSelected' => false,
        ),
        'choices' => 
        array (
          0 => 
          array (
            'text' => 'Size30',
            'price' => '20',
            'isSelected' => 'true',
          ),
          1 => 
          array (
            'text' => 'Size32',
            'price' => '22',
            'isSelected' => false,
          ),
        ),
        'conditionalLogic' => '',
        'conditionalLogic2' => 
        array (
          'actionType' => 'show',
          'logicType' => 'all',
          'checkbox' => true,
          'rules' => 
          array (
            0 => 
            array (
              'fieldId' => 2,
              'operator' => 'is',
              'value' => 'Black',
            ),
          ),
        ),
      ),
      1 => 
      array (
        'type' => 'product',
        'id' => 2,
        'label' => 'Color',
        'placeholder' => 'Select Color',
        'description' => 'DEsc',
        'defaultValue' => 
        array (
          'text' => 'Black',
          'price' => '5',
          'isSelected' => 'false',
        ),
        'choices' => 
        array (
          0 => 
          array (
            'text' => 'Black',
            'price' => '5',
            'isSelected' => 'false',
          ),
          1 => 
          array (
            'text' => 'Green',
            'price' => '6',
            'isSelected' => 'false',
          ),
          2 => 
          array (
            'text' => 'Blue',
            'price' => '4',
            'isSelected' => 'true',
          ),
          3 => 
          array (
            'text' => 'White',
            'price' => '1',
            'isSelected' => 'false',
          ),
        ),
        'conditionalLogic' => '',
      ),
      2 => 
      array (
        'type' => 'product',
        'id' => 3,
        'label' => 'Fit',
        'placeholder' => 'Select Fit',
        'description' => 'Select Fit',
        'defaultValue' => 
        array (
        ),
        'choices' => 
        array (
          0 => 
          array (
            'text' => 'Slim',
            'price' => '2',
            'isSelected' => false,
          ),
          1 => 
          array (
            'text' => 'Regular',
            'price' => '3',
            'isSelected' => false,
          ),
          2 => 
          array (
            'text' => 'Casual',
            'price' => '5',
            'isSelected' => false,
          ),
        ),
        'conditionalLogic' => '',
      ),
    ),
  ),
)

I have posted my array value. This values are dynamic. Here is two array conditionalLogic and conditionalLogic2 I want to assign those array key conditionalLogic2 exist and value should be assign to conditionalLogic. After assign conditionalLogic values into the conditionalLogic2 remove that key from my array list.

Check I have tried this way but not working -

// $data['values'] array I have posted above
foreach ($data['values'] as $products) {
    foreach ($products['product_attributes'] as $product_choices) {
        if (!empty($product_choices['conditionalLogic2']) && $product_choices['conditionalLogic'] == '') {
            $product_choices['conditionalLogic'] = $product_choices['conditionalLogic2'];
            unset($product_choices['conditionalLogic2']);
        }
    }
}
var_export($data['values']); exit;

Please help me and give me any solution how to replace the array value into another array.

What is the shortcut way to solve this problem?

What is $data['values'] I see nothing called that in your data structure — RiggsFolly
– RiggsFolly, Commented Oct 5, 2016 at 14:38
Firstly, when you loop over some array, you are working with a copy of the element, not the element itself. To work with the element you need to reference it foreach ($data['values'] as &$products) {. — sevavietl
– sevavietl, Commented Oct 5, 2016 at 14:39
Then try foreach ($products['product_attributes'] as &$product_choices) { — RiggsFolly
– RiggsFolly, Commented Oct 5, 2016 at 14:40
And try to use var_export() instead of var_dump(). In that way your arrays representations can be copy/paste. — sevavietl
– sevavietl, Commented Oct 5, 2016 at 14:44

sevavietl · Accepted Answer · 2016-10-05 15:20:27Z

2

It is usually better to avoid nested loops:

foreach ($data as &$datum) {
    if (!isset($datum['product_attributes'])) {
        continue;
    }

    $datum['product_attributes'] = array_map(function ($productAttribute) {
        if (
            !empty($productAttribute['conditionalLogic2']) 
            && empty($productAttribute['conditionalLogic'])
        ) {
            $productAttribute['conditionalLogic'] = $productAttribute['conditionalLogic2'];
            unset($productAttribute['conditionalLogic2']);
        }

        return $productAttribute;
    }, $datum['product_attributes']);
}

Here I used array_map() function to assign new arrays directly.

Here is working example.

edited Oct 5, 2016 at 15:20

answered Oct 5, 2016 at 15:06

sevavietl

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4 Comments

RiggsFolly Over a year ago

:) :) :) :) The OP is having trouble understanding how to process a fairly simple array. And you thing its a good idea to throw annonymous functions as parameters to an other funtion at them. Well I think this is just to demonstrate how clever you are rather than be of any great assistance to the OP

Chinmay235 Over a year ago

I saw your answer. your example working fine. But my local mechine not working fine. I am getting this error message -

Notice (8): Undefined index: product_attributes [APP\Controller\OrdersController.php, line 378]  Warning (2): array_map() [function.array-map]: Argument #2 should be an array [APP\Controller\OrdersController.php, line 378]  Notice (8): Undefined index: product_attributes [APP\Controller\OrdersController.php, line 378]  Warning (2): array_map() [function.array-map]: Argument #2 should be an array [APP\Controller\OrdersController.php, line 378]

sevavietl Over a year ago

@Chinu Seems that some of your arrays don't have 'product_attributes', I will update code in a sec.

sevavietl Over a year ago

@Chinu Updated.

Max Zuber · Accepted Answer · 2016-10-05 15:17:18Z

2

Your code is almost right, but you're acting a local variables in foreach loops. You should bind them to original array items as follows:

foreach ($data['values'] as & $products) {
    foreach ($products['product_attributes'] as & $product_choices) {
        if (!empty($product_choices['conditionalLogic2']) && $product_choices['conditionalLogic'] == '') {
            $product_choices['conditionalLogic'] = $product_choices['conditionalLogic2'];
            unset($product_choices['conditionalLogic2']);
        }
    }
}
unset($products);
unset($product_choices);

If there is the end of current function scope, both unset may be omitted. But you may remove references from an array explicitly to avoid undesired affects in some code below in the same scope. I.e. $products = 10; somewhere below crushes your last branch of an array.

edited Oct 5, 2016 at 15:17

answered Oct 5, 2016 at 14:52

Max Zuber

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3 Comments

RiggsFolly Over a year ago

Not sure why you have the 2 unset() at the end though

Max Zuber Over a year ago

@RiggsFolly I've commented this aspect in my answer

RiggsFolly Over a year ago

Yea but its no biggy to just add the 4 lines of code so it is blatantly obvious to the OP what is going on.

Parminder Singh · Accepted Answer · 2016-10-05 14:56:41Z

1

@chinu You are actually assigning or changing the local variables where scope is limited within for loop only so in this case, we should use pass by reference.

See the following code, it will work:

foreach ($data['values'] as &$products) {
    foreach ($products['product_attributes'] as &$product_choices) {        
        if (!empty($product_choices['conditionalLogic2']) && $product_choices['conditionalLogic'] == '') {
            $product_choices['conditionalLogic'] = $product_choices['conditionalLogic

edited Oct 5, 2016 at 14:56

answered Oct 5, 2016 at 14:52

Parminder Singh

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3 Comments

RiggsFolly Over a year ago

Why should the OP "try this"? A good answer will always have an explanation of what was done and why it was done that way, not only for the OP but for future visitors to SO that may find this question and be reading your answer.

RiggsFolly Over a year ago

What happened to the rest of his code. Most beginners like us to make it as simple as possible to understand an answer. If you leave to much to the immagination they dont understand

Parminder Singh Over a year ago

There is no other code in the post, do let me know if I missed anything. I fixed the code which has the issue.

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