fix(php): 修复闭包变量捕获逻辑

- 添加对已使用变量的检查以避免重复捕获
- 将uses数组改为关联数组以支持变量名索引
- 在处理完所有变量后重新索引uses数组
- 确保不会对相同变量名创建多个ClosureUse节点

src/Php/CompilerBase.php

@@ -4316,11 +4316,15 @@ class CompilerBase extends \PhpAot\Core\Translator
         }
 
         foreach ($vars as $var) {
-            if ($var->name === 'this' or !$this->hasLocalVar($var->name) or isset($params[$var->name])) {
+            if ($var->name === 'this'
+                or !$this->hasLocalVar($var->name)
+                or isset($params[$var->name])
+                or isset($uses[$var->name])) {
                 continue;
             }
-            $uses[] = new Node\ClosureUse($var);
+            $uses[$var->name] = new Node\ClosureUse($var);
         }
+        $uses = array_values($uses);
 
         $cb = function () use ($expr) {
             $code = $this->parseExpr($expr->expr);