我想將美國(guó)州名添加到包含美國(guó)州縮寫(xiě)的字符串中。例如，我想轉(zhuǎn)換一個(gè)字符串?dāng)?shù)組，如：Lorem ipsum CA dolor NY sit foo bar至：Lorem ipsum CA (California) dolor NY (New York) sit any foo bar假設(shè)我的替換數(shù)組如下所示：$states = array(    "AR" => "Arkansas",    "CA" => "California",    "NY" => "New York");一種方法是進(jìn)行 array_key 搜索：$input = "Lorem ipsum CA dolor NY sit any foo bar";$words = explode(' ', $input);foreach ($words as $key => $word) {    if (array_key_exists($word, $states)) {        $words[$k] = $word . " (" . $states[$word] . ")";    }}$output = implode(" ", $words);// Output: Lorem ipsum CA (California) dolor NY (New York) sit any foo bar有沒(méi)有更有效的方法使用原生 PHP 函數(shù)或正則表達(dá)式？解決方案不應(yīng)匹配部分匹配項(xiàng)（例如anyshould not matchNY和barshould not match AR）。