Php 在数组中搜索sting并回显匹配键的值

我有一个数组

$europe =  array("Albania" => "AL","Andorra" => "AD","Austria" => "AT","Belarus" => "BY","Belgium" => "BE","Bosnia and Herzegovina" => "BA","Bulgaria" => "BG","Croatia" => "HR","Cyprus" => "CY",
"Czech Republic" => "CZ","Denmark" => "DK","Estonia" => "EE","Faroe Islands" => "FO","Finland" => "FI","France" => "FR","Germany" => "DE","Gibraltar" => "GI","Greece" => "GR","Hungary" => "HU","Iceland" => "IS","Ireland" => "IE","Italy" => "IT","Latvia" => "LV","Liechtenstein" => "LI","Lithuania" => "LT","Luxembourg" => "LU","Macedonia" => "MK","Malta" => "MT","Moldova" => "MD","Monaco" => "MC","Netherlands" => "NL","Norway" => "NO","Poland" => "PL","Portugal" => "PT","Romania" => "RO","Russia" => "RU","San Marino" => "SM","Serbia" => "RS","Slovakia" => "SK","Slovenia" => "SI","Spain" => "ES","Sweden" => "SE","Switzerland" => "CH","Ukraine" => "UA","United Kingdom" => "GB","Vatican city" => "VA","Yugoslavia" => "RS","Isle of Man" => "IM","Kosovo" => "RS","Montenegro" => "ME");

我希望在数组中搜索与国家/地区匹配的字符串，并检索国家/地区代码

$search = $_GET["site_search"];
foreach ($europe as $country => $cc){
if (strtolower($country) == $search){
echo $cc;
}
}

但是我不认为上面的方法是有效的，因为它循环并检查每个键

所以我考虑使用数组搜索

echo array_search($search,$europe,true);

但是上面的回音显示的是国家（键），而不是国家代码（值）

---

有什么想法吗？

如果情况相同，就把它当作钥匙吧：

echo $europe[$_GET["site_search"]];

或规范化案例以匹配关键点：

$key = ucfirst(strtolower($_GET["site_search"]));
echo $europe[$key];