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@ 2018-03-13T06:04:23Z

<?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
Performance
VLD
References
Branches

var_export: documentation ( source)
explode: documentation ( source)

preferences:dark modelive previewkey bindings

77.45 ms | 405 KiB | 5 Q