refactor(php): 优化对象包装器处理逻辑并修复字符串转义问题

- 简化了 CompilerBase.php 中的对象包装器逻辑，减少临时变量创建
- 为 gen_stub.php 中的 minimumPhpVersionIdCompatibility 设置默认值 PHP_80_VERSION_ID
- 在 Generator/Utils.php 的 escapeString 方法中添加 C++ 三字母词序列处理

bin/gen_stub.php

@@ -4252,7 +4252,7 @@ class FileInfo {
     public bool $generateClassEntries = true;
     private bool $isUndocumentable = false;
     private bool $legacyArginfoGeneration = false;
-    private ?int $minimumPhpVersionIdCompatibility = null;
+    private ?int $minimumPhpVersionIdCompatibility = PHP_80_VERSION_ID;
 
     /** @param array<int, DocCommentTag> $fileTags */
     public function __construct(array $fileTags) {

src/Php/CompilerBase.php

@@ -3595,19 +3595,12 @@ class CompilerBase extends \PhpAot\Core\Translator
             if ($this->getVarType($id) === self::TYPE_OBJECT) {
                 return $id;
             }
-            if (isset($this->context->objectWrappers[$id])) {
-                return 'php_get_object_wrap(' . $this->context->objectWrappers[$id] . ', ' . $id . ')';
-            } else {
-                $tmpVar = $this->genTmpVarName();
-                $this->addLocalVar($tmpVar, self::TYPE_OBJECT);
-                $this->context->beforeStmtLines[] = $this->getIndent() . $tmpVar . ' = ' . $id . ';';
-                $this->context->objectWrappers[$id] = $tmpVar;
-                return $tmpVar;
+            if (!isset($this->context->objectWrappers[$id])) {
+                $this->context->objectWrappers[$id] = $this->addTmpVar(self::TYPE_OBJECT);
             }
+            return 'php_get_object_wrap(' . $this->context->objectWrappers[$id] . ', ' . $id . ')';
         } else {
-            $tmpVar = $this->genTmpVarName();
-            $this->context->beforeStmtLines[] = $this->getIndent() . self::TYPE_OBJECT . ' ' . $tmpVar . ' = ' . $id . ';';
-            return $tmpVar;
+            return self::TYPE_OBJECT . '(' . $id . ')';
         }
     }
 

src/Php/Generator/Utils.php

@@ -30,7 +30,9 @@ trait Utils
 
     protected function escapeString(string $str): string
     {
-        return addcslashes($str, "\\\"\n\r\t\v\f\0\x01..\x1f\x7f..\xff");
+        $str = addcslashes($str, "\\\"\n\r\t\v\f\0\x01..\x1f\x7f..\xff");
+        // C++ trigraph
+        return str_replace('??', '\?\?', $str);
     }
 
     protected function escapeBool(bool $bool): string