3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ "2,2-0-tc", "2-0", "2-0-tc", "3,3-0-sc-v6", "3-0-sc-v6", "3-0sc-v6", "5-0-sc-v8" ]; foreach ($array as $item) { $values = explode(",", $item); foreach ($values as $value) { if (!isset($result[$value])) { $result[$value] = $item; } } } var_export($result);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
array ( 2 => '2,2-0-tc', '2-0-tc' => '2,2-0-tc', '2-0' => '2-0', 3 => '3,3-0-sc-v6', '3-0-sc-v6' => '3,3-0-sc-v6', '3-0sc-v6' => '3-0sc-v6', '5-0-sc-v8' => '5-0-sc-v8', )
preferences:
104.91 ms | 408 KiB | 5 Q