PHP how to get value from multidimensional array?

Question

I have an array in a class and want to obtain the 'Apple' key value ('iPhone'). I assume a for each loop needs to be used.

How would I go about doing this?

UPDATE: I also need to specify the customerType and productType key values.

class Products { public function products_list() { $customerType = 'national'; $productType = 'phones'; $phoneType = 'Apple'; $productsArr = array(); $productsArr[] = array( 'customerType' => 'national', 'productType' => array( 'phones' => array( 'Apple' => 'iPhone', 'Sony' => 'Xperia', 'Samsung' => 'Galaxy' ), 'cases' => array( 'leather' => 'black', 'plastic' => 'red', ), ), 'international' => array( 'phones' => array( 'BlackBerry' => 'One', 'Google' => 'Pixel', 'Samsung' => 'Note' ), 'cases' => array( 'leather' => 'blue', 'plastic' => 'green' ), ) ); } }

this will come multiple times inisde main array or only one time? — Death-is-the-real-truth
– Death-is-the-real-truth, Commented Oct 4, 2017 at 13:06
@ianhman can you give an example for this:- It could be multiple times in the main array? May be i can give a much shorter code? — Death-is-the-real-truth
– Death-is-the-real-truth, Commented Oct 4, 2017 at 13:18

Kevin R · Accepted Answer · 2017-10-04 14:34:38Z

I have created a function that you can more or less give it any product and it will return the key and value from the array

<?php class Products { public function products_list() { $customerType = 'national'; $productType = 'phones'; $phoneType = 'Apple'; $productsArr[] = array( 'customerType' => 'national', 'productType' => array( 'phones' => array( 'Apple' => 'iPhone', 'Sony' => 'Xperia', 'Samsung' => 'Galaxy' ), 'cases' => array( 'leather' => 'black', 'plastic' => 'red', ), ), 'international' => array( 'phones' => array( 'BlackBerry' => 'One', 'Google' => 'Pixel', 'Samsung' => 'Note' ), 'cases' => array( 'leather' => 'blue', 'plastic' => 'green' ), ) ); echo $this->get_value($phoneType, $productsArr) .'<br>'; echo $this->get_value($customerType, $productsArr) .'<br>'; echo $this->get_value($productType, $productsArr) .'<br>'; } function get_value($product, array $products) { $iterator = new RecursiveIteratorIterator(new RecursiveArrayIterator($products), RecursiveIteratorIterator::CHILD_FIRST); foreach ($iterator as $key => $value) { if (is_string($value) && ($key == $product)) { return 'key ->' . $key .' value ->'.$value; } } return ""; } } $phone_products = new Products(); $phone_products->products_list();

To use it within the class just call

$this->get_value($phoneType, $productsArr);

from without the class call

$phone_products = new Products(); echo ($phone_products->get_value($phoneType, $productsArr)); //output: key ->Apple value ->iPhone

NB: $phoneType, $productsArr will either be defined the methods they are being used in or passed from other methods or define global variables within the class.

Thanks although how would this work in a class? BTW have updated my question as I also need to specify the customerType and productType key values.
@ianhman I have edited the solution. To call customer type just replace '$phonetype' with the customerType since they are all within the same array. e.g $this->get_value($customerType , $productsArr); or $this->get_value($productType , $productsArr);
thanks for editing although I cannot get it to work with the class. I'm using PHPStorm IDE which does not recognise array $productsArr in the start of the method: public function get_value($product, array $productsArr) Also where I am echoing the class value the variables appear as undefined echo ($phone_products->get_value($phoneType, $productsArr));

Death-is-the-real-truth · Accepted Answer · 2017-10-04 18:16:16Z

If you want single entry:

 echo $productsArr[0]['productType']['phones']['Apple']."<br />";

If there are multiple data, you can use foreach:

 foreach ($productsArr as $prod){ echo $prod['productType']['phones']['Apple']."<br />"; }

Anoop Babu · Accepted Answer · 2017-10-04 13:22:11Z

just try

foreach($productsArr[0]['productType']['phones'] as $phones){ echo $phones[$phoneType]; }

Saad Achemlal · Accepted Answer · 2017-10-04 13:36:06Z

foreach($productsArr as $key1 => $data1 ){ if(is_array($data1)) foreach($data1 as $key2 => $data2 ){ if(is_array($data2)) foreach($data2 as $key3 => $data3 ){ if(array_key_exists('Apple', $data3)) { echo $data3['Apple'] ."\n"; } } } }

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