From 3492a4ebe67afac2435458af345bbdc6317d7467 Mon Sep 17 00:00:00 2001
From: tianfenghan <rango@swoole.com>
Date: Mon, 5 Jan 2026 16:37:33 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=20AssignOpConcat?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .gitignore             |  1 +
 src/Php/Translator.php | 14 ++++++++++++--
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/.gitignore b/.gitignore
index 428ca671..92110594 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 /tmp
 /examples/wordpress
 /.php-cs-fixer.cache
+*.o
\ No newline at end of file
diff --git a/src/Php/Translator.php b/src/Php/Translator.php
index 6de91202..375cac9f 100644
--- a/src/Php/Translator.php
+++ b/src/Php/Translator.php
@@ -777,11 +777,16 @@ class Translator extends \PhpAot\Core\Translator
         return filter_var($str, FILTER_VALIDATE_INT);
     }
 
-    private function isCoreFunction(string $fname)
+    private function isCoreFunction(string $fname): bool
     {
         return array_key_exists($fname, $this->definedFunctions);
     }
 
+    private function isAssignOpConcat(string $op): bool
+    {
+        return $op === '.=';
+    }
+
     /**
      * 尽可能转为数字，优先级 浮点 > 整数 > 字符串
      */
@@ -1160,7 +1165,12 @@ class Translator extends \PhpAot\Core\Translator
         $leftExprType = $node->var->getType();
         if ($leftExprType === self::EXPR_VARIABLE) {
             $type = $this->detectVarType($node->var);
-            return $var . ' ' . $op . ' ' . $this->convertExprType($expr, $type, $this->detectExprType($node->expr));
+            $rightExprStr = $this->convertExprType($expr, $type, $this->detectExprType($node->expr));
+            if ($this->isAssignOpConcat($op)) {
+                return $var . '.append(' . $rightExprStr . ')';
+            } else {
+                return $var . ' ' . $op . ' ' . $rightExprStr;
+            }
         } elseif ($leftExprType === self::EXPR_ARRAY_DIM_FETCH) {
             /**
              * $count[$r] -= 1;