<?php
$data = [
1, 2, 3,
'',
4, 5, 6, 7,
'',
8, 9, 10, 11, 12, 13,
''
];
$newArray = [];
$i = 0;
foreach($data as $item) {
++$i;
continue;
}
else {
$newArray[$i][] = $item;
}
}
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