/**
* Process data
*
* @param array $data Data
*
* @return int
* @throws \InvalidArgumentException
*/
protected function processData(array &$data)
{
$max = null;
foreach ($data as $value) {
$depth = Arr::depth($value) + 1;
if ($max === null) {
$max = $depth;
} elseif ($depth !== $max) {
throw new \InvalidArgumentException('Rendering INI format requires array in which all elements have with same complexity.');
}
}
$max = (int) $max;
if ($max > 2) {
throw new \InvalidArgumentException('Rendering INI format expects only 1 or 2 dimensional array.');
}
return $max;
}
