<?php $a = ["g41" => 1, "g44" => 2, "g53" => 3]; $list = [40, 41, 44, 46, 53]; foreach ($list as $v) { if (isset($a["g$v"])) { $result[$v] = $a["g$v"]; } else { $extra[$v] = null; } } var_export(array_replace($result ?? [], $extra ?? []));
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