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<?php function valueSeparator(array $array) { $maxIterations = count($array); $counted = array_count_values($array); arsort($counted); $iteration = 0; $result = []; while (max($counted) > 1 && $iteration < $maxIterations) { $count = reset($counted); $value = key($counted); $result[] = $value; unset($counted[$value]); arsort($counted); if ($count > 1) { $counted = array_merge( array_splice($counted, 0, 1), [$value => $count - 1], $counted ); } ++$iteration; } array_push($result, ...array_keys($counted)); var_export($result); } $arrays = [ ['Retail', 'Retail', 'Food', 'Food', 'Retail'], ['Retail', 'Retail', 'Food', 'Charity', 'Entertainment', 'Entertainment', 'Transport', 'Cosmetics'], ['Food'], ['Retail', 'Retail', 'Food', 'Retail'], ['Retail', 'Retail', 'Retail', 'Food', 'Food', 'Food', 'Charity', 'Charity', 'Charity'], ['Charity', 'Entertainment', 'Retail', 'Retail' ,'Retail'] ]; foreach ($arrays as $array) { valueSeparator($array); echo "\n---\n"; }
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array ( 0 => 'Retail', 1 => 'Food', 2 => 'Retail', 3 => 'Food', 4 => 'Retail', ) --- array ( 0 => 'Retail', 1 => 'Entertainment', 2 => 'Retail', 3 => 'Entertainment', 4 => 'Food', 5 => 'Charity', 6 => 'Transport', 7 => 'Cosmetics', ) --- array ( 0 => 'Food', ) --- array ( 0 => 'Retail', 1 => 'Food', 2 => 'Retail', 3 => 'Retail', ) --- array ( 0 => 'Retail', 1 => 'Food', 2 => 'Charity', 3 => 'Food', 4 => 'Charity', 5 => 'Retail', 6 => 'Charity', 7 => 'Retail', 8 => 'Food', ) --- array ( 0 => 'Retail', 1 => 'Charity', 2 => 'Retail', 3 => 'Entertainment', 4 => 'Retail', ) ---
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array ( 0 => 'Retail', 1 => 'Food', 2 => 'Retail', 3 => 'Food', 4 => 'Retail', ) --- array ( 0 => 'Retail', 1 => 'Entertainment', 2 => 'Retail', 3 => 'Entertainment', 4 => 'Food', 5 => 'Charity', 6 => 'Transport', 7 => 'Cosmetics', ) --- array ( 0 => 'Food', ) --- array ( 0 => 'Retail', 1 => 'Food', 2 => 'Retail', 3 => 'Retail', ) --- array ( 0 => 'Retail', 1 => 'Food', 2 => 'Charity', 3 => 'Food', 4 => 'Charity', 5 => 'Retail', 6 => 'Charity', 7 => 'Retail', 8 => 'Food', ) --- array ( 0 => 'Retail', 1 => 'Charity', 2 => 'Retail', 3 => 'Entertainment', 4 => 'Retail', ) ---
preferences:
196.41 ms | 403 KiB | 180 Q