CODEWITHSUNDEEP
phparraysarray-key
perun
perun

Reputation: 23

How to use key number as a value at the array?

I have an array, where every item has a few parameters. One of the parameters is a hyperlink with the ID of that item. And I need that ID to be a key for that item value.

I've already tried something like this:

function item_preview($database)
 {
    foreach($database as $key=> $value)
    {
      $one= $key;
    }
      return $one;
}

$database= [
[
    'name'=> 'item_one',
    'img_src'=> 'pictures/item_one.jpg',
    'preview_href'=> 'item_site.php?id='.item_preview($database).'',
    'description'=> 'This product is.....' ,
],
[
    'name'=> 'item_two',
    'img_src'=> 'pictures/item_two.jpg',
    'preview_href'=> 'item_site.php?id='.item_preview($database).'',
    'description'=> 'This product is.....' ,
],
];

and what i need is...

 $database= [
 [
    'name'=> 'item_one',
    'img_src'=> 'pictures/item_one.jpg',
    'preview_href'=> 'item_site.php?id= here should be key number',
    'description'=> 'This product is.....' ,
],
[
    'name'=> 'item_two',
    'img_src'=> 'pictures/item_two.jpg',
    'preview_href'=> 'item_site.php?id= here should be key number',
    'description'=> 'This product is.....' ,
],
];

So I need id to be key of that item. So first item id=0; second item id=1;....

Upvotes: 1

Views: 64

Answers (2)

Dylan Hamilton
Dylan Hamilton

Reputation: 692

You could do something like 

$startingIndex = 0;

$database= [
[
    'name'=> 'item_one',
    'img_src'=> 'pictures/item_one.jpg',
    'preview_href'=> 'item_site.php?id='.$startingIndex++.'',
    'description'=> 'This product is.....' ,
],
[
    'name'=> 'item_two',
    'img_src'=> 'pictures/item_two.jpg',
    'preview_href'=> 'item_site.php?id='.$startingIndex++.'',
    'description'=> 'This product is.....' ,
],

That would result in id being 0 for the first entry, 1 for the second, and so on.

Upvotes: 2

AbraCadaver
AbraCadaver

Reputation: 78994

You can just define the key and use it in the href:

$database= [
0=>[
    'name'=> 'item_one',
    'img_src'=> 'pictures/item_one.jpg',
    'preview_href'=> 'item_site.php?id=0',
    'description'=> 'This product is.....' ,
],
1=>[
    'name'=> 'item_two',
    'img_src'=> 'pictures/item_two.jpg',
    'preview_href'=> 'item_site.php?id=1',
    'description'=> 'This product is.....' ,
]];

Or, after defining your array, just walk it and append the key:

$database= [
[
    'name'=> 'item_one',
    'img_src'=> 'pictures/item_one.jpg',
    'preview_href'=> 'item_site.php?id=',
    'description'=> 'This product is.....' ,
],
[
    'name'=> 'item_two',
    'img_src'=> 'pictures/item_two.jpg',
    'preview_href'=> 'item_site.php?id=',
    'description'=> 'This product is.....' ,
]];

array_walk($database, function(&$v, $k){ $v['preview_href'] .= $k; });

Upvotes: 0

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