Combine two arrays on key/value and output combined array with PHP

Question

Racking my brain on this, found many examples of similar situations however the solutions don\'t seem to match up.

I have two arrays being built as the result of SQL que

Answer 1

Try this:

foreach ($matchme as $arrProduct) {
    if (isset($data[$arrProduct['sku']])) {
        $arrMerged[$arrProduct['sku']]=array_merge($arrProduct, $data[$arrProduct['sku']]);
    }
}

print_r($arrMerged);

The reason your code doesn't work is here:

if(in_array($matchme[$key]['sku'], $data)) [...]

What in_array() does is tell you whether your needle (in your case the SKU string) exists as a value of array haystack (in your case, $data). You are essentially trying to match a string to an array, rather than another string.

What you really want is just to match the SKU string to the key of $data, for which isset() is probably the simplest approach.

Answer 2

Assuming your first array as $first and second array as $second

foreach ($first as $key => $each) {
  foreach ($second as $secondeach) {
    if($secondeach['sku'] == $key) {
      $first[$key] = array_merge($first[$key], $secondeach);
      // unset since you do not want LocalSKU value anymore.
      unset($first[$key]['LocalSKU']);
    }
  }
}

$first is your array you wanted.