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<?php $array = [ '10-7', '11-3', '11-7', '12-3', '12-7', '13-3', '13-7', '14-3', '14-7', '15-7', ]; $hours = []; $days = []; foreach ($array as $item) { [0 => $hour, 1 => $day, 0 => $hours[$hour], 1 => $days[$day]] = explode('-', $item); } var_export($hours); echo "\n--\n"; var_export($days);

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