public function zip($array = null)
{
$arrays = self::_wrapArgs(func_get_args());
$num_arrays = count($arrays);
if ($num_arrays === 1) {
return self::_wrap($array);
}
$__ = new self();
$num_return_arrays = $__->max($__->map($arrays, function ($array) {
return count($array);
}));
$return_arrays = $__->range($num_return_arrays);
foreach ($return_arrays as $k => $v) {
if (!is_array($return_arrays[$k])) {
$return_arrays[$k] = array();
}
foreach ($arrays as $a => $array) {
$return_arrays[$k][$a] = array_key_exists($k, $array) ? $array[$k] : null;
}
}
return self::_wrap($return_arrays);
}
