比较多维数组中的键

Question

I'm trying to set a cookie depending on if the users country code is available in an array.

$Countries = array(
    "SE" => "swe",
    "DEU" => "ger",
    "NLD" => "dut",
    "HRV" => "cro",
    "FRA" => "fr",
    "HUN" => "hun",
);

foreach($Countries as $Key => $Value) {
    if($this->Country($_SERVER["REMOTE_ADDR"]) == $Key) {
        setcookie('LanguageCookie', $Value, time()+(10 * 365 * 24 * 60 * 60));
        setcookie('LanguageIsNative', true, time()+(10 * 365 * 24 * 60 * 60), '/');
        break;
    } else {
        setcookie('LanguageCookie', $Configuration["Config"]["DefaultLanguage"], time()+(10 * 365 * 24 * 60 * 60));
        break;
    }
}

Now, If my country code is "SE" it will work and it will set the cookie LanguageCookie to swe . But if my country code is anything below "SE" in the array, for example "HRV" , it will fail and run the else block (keep in mind that if the country code doesnt exist in the array, it should run the else block).

I break the loop because other it'd just go on and in the end just run the else block, even if the country code exists.

How can this be fixed?

Answer 1

You don't need to use a foreach loop to achieve this.

// Get the country code
$country = $this->country($_SERVER['REMOTE_ADDR']);

// Set cookies
if (isset($countries[$country])) {
    setcookie('LanguageCookie', $countries[$country], time()+(10 * 365 * 24 * 60 * 60));
    setcookie('LanguageIsNative', true, time()+(10 * 365 * 24 * 60 * 60), '/');
} else {
    setcookie('LanguageCookie', $Configuration["Config"]["DefaultLanguage"], time()+(10 * 365 * 24 * 60 * 60));
}

Answer 2

The problem is, the else block should be executed once after the loop - if the condition was never met. This could be achieved, by setting a flag inside the loop.

$found = false;
foreach($Countries as $Key => $Value) {
    if($this->Country($_SERVER["REMOTE_ADDR"]) == $Key) {
        setcookie('LanguageCookie', $Value, time()+(10 * 365 * 24 * 60 * 60));
        setcookie('LanguageIsNative', true, time()+(10 * 365 * 24 * 60 * 60), '/');
        $found = true;
        break;
    }
}
if (!$found) {
    setcookie('LanguageCookie', $Configuration["Config"]["DefaultLanguage"], time()+(10 * 365 * 24 * 60 * 60));
}