<?php

$data = [
	1, 2, 3,
	'',
	4, 5, 6, 7,
	'',
	8, 9, 10, 11, 12, 13,
	''
];
print_r($data);

$i = 1;
foreach($data as $item) {
	if(empty($item)) {
		++$i;
		continue;
	}
	else {
		${'newArray' . $i}[] = $item;
	}
}

$i = 1;
while(true) {
	if(isset(${'newArray' . $i})) {
		print_r(${'newArray' . $i++});
	}
	else {
		break;
	}
}