fix: generate server global symbol consistently

phpunit/src/ServerEnvironmentTest.php

@@ -43,6 +43,7 @@ class ServerEnvironmentTest extends TestCase
         $method = new ReflectionMethod(Translator::class, 'registerServerEnvironment');
         $code = $method->invoke($compiler, 'C:\\project\\"quoted"\\main.php');
 
+        $this->assertStringContainsString('php::Var &_SERVER = _global_var__SERVER;', $code);
         $this->assertStringContainsString('php::Str php_self = "PHP_SELF";', $code);
         $this->assertStringContainsString('php::Str script_name = "SCRIPT_NAME";', $code);
         $this->assertStringContainsString('php::Str script_filename = "SCRIPT_FILENAME";', $code);

src/Translator.php

@@ -3232,7 +3232,7 @@ CODE;
 
     private function registerServerEnvironment(string $entryFile): string
     {
-        $cppCode = 'php::Var &_SERVER = _global_var__SERVER;' . PHP_EOL;
+        $cppCode = 'php::Var &_SERVER = ' . $this->escapeGlobalVar('_SERVER') . ';' . PHP_EOL;
         $cppCode .= 'php::Str php_self = "PHP_SELF";' . PHP_EOL;
         $cppCode .= 'php::Str script_name = "SCRIPT_NAME";' . PHP_EOL;
         $cppCode .= 'php::Str script_filename = "SCRIPT_FILENAME";' . PHP_EOL;