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PHP

Łukasz Czuliński
Łukasz Czuliński
8,646 Points
Posted by Łukasz Czuliński
Łukasz Czuliński
8,646 Points

Restructuring nested array.

Hi everyone. I've been at this a while and my brain is starting to hurt.

Basically, I have an array like this:

$pricing = [
   'item' => [
        0 => 'consultation',
        1 => 'design'
    ], 
    'description' => [
        0 => '',
        1 => 'main conception'
    ],
    'price' => [
        0 => '300',
        1 => '800'
    ]
]

Which I want to turn into something like this:

$items = [
   0 => [
        'item' => 'consultation',
        'description' => '',
        'item_price' => '300'   
    ],
    1 => [
        'item' => 'design',
        'description' => 'main conception',
        'item_price' => '800'
    ]
]

I'm after something very reusable since the amount of inputs are dynamic and user-controlled. My most recent failed attempt was this:

$newArray = [];

for($i = 0; $i < count($input['item']); $i++)
{
    foreach($input as $key => $row)
    {
        $newArray[$i] = [$key => $row[$i]];
    }
}

This created the two indexed arrays that I want, but only returned a single key => value pair.

array (size=2)
  0 => 
    array (size=1)
      'item_price' => string '300' (length=1)
  1 => 
    array (size=1)
      'item_price' => string '800' (length=1)

What am I missing here?

1 Answer

Łukasz Czuliński
Łukasz Czuliński
8,646 Points
Łukasz Czuliński
Łukasz Czuliński
8,646 Points

Ended up figuring it out. Some renaming of the foreach variables made it easier to picture.

$newArray = [];

foreach ($input as $field => $indexes) {
    for ($i = 0; $i < count($indexes); $i++) {
        $newArray[$i][$field] = $indexes[$i];
    }
}

return $newArray;

This gives the desired array.