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<?php $dashAccess = "1-10:rw,14:rw|10-10:ro,14:ro"; $outArray = []; foreach (explode('|', $dashAccess) as $bigPiece) { list($medKey, $medPiece) = explode('-', $bigPiece); $outArray[$medKey] = []; foreach (explode(',', $medPiece) as $smallPiece) { list($crumbleKey, $crumblePiece) = explode(':', $smallPiece); $outArray[$medKey][$crumbleKey] = $crumblePiece; } } var_dump($outArray);

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