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<?php $result = []; $array = ["[3]:9","[2]:6"]; foreach($array as $v){ preg_match("/\[(.*)\]:(.*)/",$v,$matches); $result[$matches[1]] = $matches[2]; } print_r($result);
Output for 7.1.25 - 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 ( [3] => 9 [2] => 6 )

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