PHP array_search for multi dimensional array and return key

Question

I\'m trying to search for a value in a multi dimensional array (below is only a part of the big array) and get the key for that value but I can\'t manage it by myself. Here is w

Answer 1

If you don't need to key, you could use array_filter

$result = array_filter($data, function($item) use ($search) {
    return $item[8] == $search;
})[0];

If you need the key, you could modify it like this

$key = false;
$result = array_filter($data, function($item, $k) use ($search, &$key) {
    if ($item[8] == $search) {
        $key = $k;
        return true;
    }
    return false;
}, ARRAY_FILTER_USE_BOTH)[0];

To handle cases, where no result is found, you have to skip the [0] party and test if count($result) != 0