Online PHP editor | output for 1UgZT

<?php function balancedTagCloud(array $values, array $priorities): array { $low = min($priorities) - 1; $high = max($priorities) - $low; return array_map( fn($v, $p) => sprintf( '<h%1$d>%2$s</h%1$d>', ceil(($p - $low) / $high * 6), $v ), $values, $priorities ); } $artist = ["the roots", "michael jackson", "billy idol", "more", "and more", "and_YET_MORE"]; $counts = [ 'original' => [5, 3, 9, 1, 1, 3], 'no_ones' => [5, 3, 9, 7, 7, 3], 'skewed' => [5, 3, 9, 7, 111, 3], 'all_same' => [5, 5, 5, 5, 5, 5], 'only_two' => [9, 20, 9, 20, 9, 20], ]; foreach ($counts as $count) { echo implode("\n", balancedTagCloud($artist, $count)); echo "\n---\n"; }