<?php $array = [ 'radios1' => [ 'on', ], 'empty' => [ '', ], 'from' => [ '', 'Bangalore', null, 0, ] ]; $result = []; foreach ($array as $key => $items) { foreach ($items as $item) { if ($item) { $result[$key][] = $item; } } } var_export($result);
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