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run code in 300+ PHP versions simultaneously
<?php $in = [ '2,24', '2,2,9,12' ]; $out = []; foreach($in as $item) { $norm = explode(',', $item); $ar = array_count_values($norm); $pos = []; $out[] = &$pos; array_walk($ar, function ($val, $key) use(&$pos) { if($val > 1) { $pos[] = $key . '(' . $val . ')'; } else { $pos[] = $key; } }); unset($pos); } foreach($out as $listItem) { echo implode(',', $listItem) , PHP_EOL; }
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 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 - 8.3.6
2,24 2(2),9,12
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/XGXNQ on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/XGXNQ on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/XGXNQ on line 3
Process exited with code 255.
preferences:
221.66 ms | 401 KiB | 312 Q