Apply suggestions from code review

Co-authored-by: Tim Düsterhus <timwolla@googlemail.com>

releases/8.4/release.inc

@@ -43,21 +43,47 @@ common_header(message('common_header', $lang));
                     <div class="php8-code phpcode">
                         <?php highlight_php_trimmed(
                             <<<'PHP'
-class User
+class Locale
 {
-    public function __construct(
-        private string $first,
-        private string $last,
-    ) {}
+    private string $languageCode;
+    private string $countryCode;
+    
+    public function __construct(string $languageCode, string $countryCode) {
+        $this->setLanguageCode($languageCode);
+        $this->setCountryCode($countryCode);
+    }
+
+    public function getLanguageCode(): string {
+        return $this->languageCode;
+    }
+
+    public function setLanguageCode(string $languageCode): void {
+        $this->languageCode = $languageCode;
+    }
+
+    public function getCountryCode(): string {
+        return $this->countryCode;
+    }
+
+    public function setCountryCode(string $countryCode): void {
+        $this->countryCode = strtoupper($countryCode);
+    }
+
+    public function setCombinedCode(string $combinedCode): void {
+        [$languageCode, $countryCode] = explode('_', $combinedCode, 2);
 
-    public function setFullName(string $value): string {
-        [$this->first, $this->last] = explode(' ', $value, 2);
+        $this->setLanguageCode($languageCode);
+        $this->setCountryCode($countryCode);
     }
 
-    public function getFullName(): string {
-        return $this->first . ' ' . $this->last;
+    public function getCombinedCode(): string {
+        return \sprintf("%s_%s", $this->languageCode, $this->countryCode);
     }
 }
+
+$brazilianPortuguese = new Locale('pt', 'br');
+var_dump($brazilianPortuguese->getCountryCode()); // BR
+var_dump($brazilianPortuguese->getCombinedCode()); // pt_BR
 PHP
 
                         ); ?>
@@ -69,22 +95,32 @@ PHP
                     <div class="php8-code phpcode">
                         <?php highlight_php_trimmed(
                             <<<'PHP'
-class User
+class Locale
 {
-    public function __construct(
-        private string $first,
-        private string $last,
-    ) {}
-
-    public string $fullName {
-        get {
-            return $this->first . " " . $this->last;
+    public string $languageCode;
+
+    public string $countryCode {
+        set (string $countryCode) {
+            $this->countryCode = strtoupper($countryCode);
         }
+    }
+
+    public string $combinedCode {
+        get => \sprintf("%s_%s", $this->languageCode, $this->countryCode);
         set (string $value) {
-            [$this->first, $this->last] = explode(' ', $value, 2);
+            [$this->countryCode, $this->languageCode] = explode(' ', $value, 2);
         }
     }
+
+    public function __construct(string $languageCode, string $countryCode) {
+        $this->languageCode = $languageCode;
+        $this->countryCode = $countryCode;
+    }
 }
+
+$brazilianPortuguese = new Locale('pt', 'br');
+var_dump($brazilianPortuguese->getCountryCode()); // BR
+var_dump($brazilianPortuguese->getCombinedCode()); // pt_BR
 PHP
                         ); ?>
                     </div>