PHP Dynamic Nested Associative Array

Question

I have an associative array which is generated dynamically with the values from database. When I print the whole array, it gives something like this when we put print_r($array).

  Array ( [95a5c80811239526fb75cbf31740cc35] => Array ( [product_id] => 2324) )

When I echo like this,

echo $array['95a5c80811239526fb75cbf31740cc35']['product_id'];

it gives me product id. But the problem is, the code '95a5c80811239526fb75cbf31740cc35' changes dynamically everytime. I want to echo the product id irrespective of this code.

I tried

$array[]['product_id'];
$array['']['product_id'];

But not working. Can anyone help me? Please ask me if you have any doubts.

Is there always only a single element in the array?

Ja͢ck
– Ja͢ck

2014-07-11 08:16:20 +00:00
Commented Jul 11, 2014 at 8:16 — Ja͢ck
– Ja͢ck, Commented Jul 11, 2014 at 8:16

user1978142 · Accepted Answer · 2014-07-11 07:50:56Z

2

You can use reset() in this case:

$array = array(
    '95a5c80811239526fb75cbf31740cc35' => array( // dynamic
        'product_id' => 2324
    ),
);

$value = reset($array); // set pointer to first element
echo $value['product_id']; // 2324

answered Jul 11, 2014 at 7:50

user1978142

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Comments

Alex · Accepted Answer · 2014-07-11 07:49:48Z

1

Assuming that the code is always the first element in the array:

$array[0]['product_id'];

If you collectively want all of the product ID's:

foreach($array as $product){
    $productIds[] = $product['product_id'];
}

// $productIds is now what $array was, but without the codes, so the product_id's are the first elements.

answered Jul 11, 2014 at 7:49

Alex

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Comments

Jenno Richi Benat · Accepted Answer · 2014-07-11 07:49:54Z

1

You can use for each for this so that you can get the value of product Id

 $array = Array ( [95a5c80811239526fb75cbf31740cc35] => Array ( [product_id] => 2324) )

foreach($array as $product){
echo $product['product_id'];
}

This would get your desired o/p

answered Jul 11, 2014 at 7:49

Jenno Richi Benat

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Comments

ALOK · Accepted Answer · 2014-07-11 08:13:08Z

1

IF you are getting problem using Associative array then you can first convert it into numeric as follows

    $arr=array( 'first' => array( 'product_id' => 2324) );
    $arrr=array_values($arr);
     echo $arrr[0]['product_id'];

Output:

Hope this helps and to know about array_values go here

answered Jul 11, 2014 at 8:13

ALOK

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Comments

Ilia Ross · Accepted Answer · 2014-07-11 08:17:41Z

1

Depending on your situation, there are few possible solutions:

$array = array_shift(array_values(
  Array(
    '95a5c80811239526fb75cbf31740cc35' =>
       Array(
          'product_id' => 2324
       )
    )));

echo $array['product_id']; // 2324

Another solution, probably more efficient:

echo array_shift(array_slice($array, 0, 1)); // 2324

For PHP 5.4+ you could go with:

echo array_values($array)[0]; // 2324

edited Jul 11, 2014 at 8:17

answered Jul 11, 2014 at 8:04

Ilia Ross

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2 Comments

Alex Over a year ago

This seems a long winded way to what is simply extracting the 2nd element of an array

Ilia Ross Over a year ago

What is so long in doing: array_values($array)[0]; The other is just study examples.

user3821538 · Accepted Answer · 2014-07-11 07:50:45Z

-1

$array[0]['product_id'];

Should do the trick.

answered Jul 11, 2014 at 7:50

user3821538

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1 Comment

Synchro Over a year ago

This will return a value, but it's not clear from the question if it will be the right one. It might be safer to use array_shift to get the first item without using an index at all.

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