diff --git a/examples/class/test.php b/examples/class/test.php
index 4bbbc83e..fc0e15b8 100644
--- a/examples/class/test.php
+++ b/examples/class/test.php
@@ -1,5 +1,16 @@
 <?php
 
+
+class Test2 extends Test
+{
+    function fun(string $name)
+    {
+        var_dump(__CLASS__);
+        var_dump($name);
+    }
+}
+
+
 class Test
 {
     private $a;
@@ -26,11 +37,3 @@ class Test
     }
 }
 
-class Test2 extends  Test{
-    function fun(string $name)
-    {
-        var_dump(__CLASS__);
-        var_dump($name);
-    }
-}
-
diff --git a/src/Php/ClassDef.php b/src/Php/ClassDef.php
index ccd37f95..dfed1bbe 100644
--- a/src/Php/ClassDef.php
+++ b/src/Php/ClassDef.php
@@ -2,9 +2,8 @@
 
 namespace PhpAot\Php;
 
-class ClassDef
+class ClassDef extends ClassLikeDef
 {
-    public string $name;
     /**
      * @var array<string, MethodDef>
      */
@@ -17,15 +16,11 @@ class ClassDef
      * @var array<string, ConstantDef>
      */
     public array $constants = [];
-    public string $namespace = '';
     public array $implements = [];
     public string $extends = '';
 
-    public function getNamespacedName(): string
+    public function __construct(string $name, string $namespace = '')
     {
-        if ($this->namespace === '') {
-            return $this->name;
-        }
-        return str_replace('\\', '_', $this->namespace . '_' . $this->name);
+        parent::__construct($name, $namespace);
     }
 }
\ No newline at end of file
diff --git a/src/Php/ClassLikeDef.php b/src/Php/ClassLikeDef.php
new file mode 100644
index 00000000..b68f055e
--- /dev/null
+++ b/src/Php/ClassLikeDef.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace PhpAot\Php;
+
+class ClassLikeDef
+{
+    public string $name;
+    public string $namespace = '';
+
+    public function __construct(string $name, string $namespace = '')
+    {
+        $this->name = $name;
+        $this->namespace = $namespace;
+    }
+
+    public function getNamespacedName(): string
+    {
+        if ($this->namespace === '') {
+            return $this->name;
+        }
+        return str_replace('\\', '_', $this->namespace . '_' . $this->name);
+    }
+}
\ No newline at end of file
diff --git a/src/Php/CompilerBase.php b/src/Php/CompilerBase.php
index 7b7a87a1..74c8c5d9 100644
--- a/src/Php/CompilerBase.php
+++ b/src/Php/CompilerBase.php
@@ -86,6 +86,7 @@ class CompilerBase extends \PhpAot\Core\Translator
      * @var array<string, ClassDef>
      */
     protected array $classes = [];
+    protected array $interfaces = [];
     /**
      * @var array<string, ClassDef>
      */
@@ -1096,7 +1097,11 @@ class CompilerBase extends \PhpAot\Core\Translator
                 $left = $expr->var;
                 $name = $this->parseIdentifier($left);
                 $type = $this->detectExprType($expr->expr);
-                $code .= $type . ' ' . $name . ' = ' . '(' . $this->parseIdentifier($expr->expr) . ');';
+                // for 循环的变量声明，必须在循环体之外，不能创建 scope tmp var
+                if ($this->hasVar($name)) {
+                    $this->addLocalVar($name, $type);
+                }
+                $code .= $name . ' = ' . '(' . $this->parseIdentifier($expr->expr) . ');';
             }
             $list_cond[] = $this->parseExpr($expr);
         }
diff --git a/src/Php/InterfaceDef.php b/src/Php/InterfaceDef.php
new file mode 100644
index 00000000..ba98d66c
--- /dev/null
+++ b/src/Php/InterfaceDef.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace PhpAot\Php;
+
+class InterfaceDef extends ClassLikeDef
+{
+}
\ No newline at end of file
diff --git a/src/Php/Preprocessor.php b/src/Php/Preprocessor.php
index cc2ec5c1..337f9810 100644
--- a/src/Php/Preprocessor.php
+++ b/src/Php/Preprocessor.php
@@ -106,6 +106,7 @@ class Preprocessor extends CompilerBase
                 case 'Stmt_Declare':
                 case 'Stmt_Use':
                 case 'Stmt_Const':
+                case 'Stmt_Interface':
                     break;
                 default:
                     $this->fatalError($v, 'Unsupported statement: ' . $type);
diff --git a/src/Php/Translator.php b/src/Php/Translator.php
index f5c2a795..1eae9c53 100644
--- a/src/Php/Translator.php
+++ b/src/Php/Translator.php
@@ -131,7 +131,28 @@ class Translator extends Preprocessor
         return self::PREFIX . 'register_class_' . $name;
     }
 
-    protected function getClassCe(ClassDef $classDef): string
+    protected function getRegisterClassFunctionCeList(ClassDef $classDef): array
+    {
+        $list = [];
+        $parentCe = $this->getParentClassCe($classDef);
+        $implements = $this->getImplementCe($classDef);
+        if ($parentCe) {
+            $list = [$parentCe];
+        }
+        return array_merge($list, $implements);
+    }
+
+    public function getRegisterClassFunctionArgs(ClassDef $classDef): string
+    {
+        return implode(', ', $this->getRegisterClassFunctionCeList($classDef));
+    }
+
+    private function getRegisterClassFunctionArgDef(ClassDef $classDef): string
+    {
+        return 'zend_class_entry *' . implode(', zend_class_entry *', $this->getRegisterClassFunctionCeList($classDef));
+    }
+
+    protected function getClassCe(ClassLikeDef $classDef): string
     {
         return self::PREFIX . 'class_entry_' . $classDef->getNamespacedName();
     }
@@ -144,6 +165,11 @@ class Translator extends Preprocessor
         return self::PREFIX . 'class_entry_' . $classDef->extends;
     }
 
+    private function getImplementCe(ClassLikeDef $classDef): array
+    {
+        return array_map(fn($v) => self::PREFIX . 'class_entry_' . $v, $classDef->implements);
+    }
+
     protected function doConvert(string $phpCode): string
     {
         $this->climate->info('convert: ' . $this->file);
@@ -179,6 +205,9 @@ class Translator extends Preprocessor
                 case 'Stmt_Const':
                     $this->parseConstDef($v) . PHP_EOL;
                     break;
+                case 'Stmt_Interface':
+                    $this->parseInterface($v) . PHP_EOL;
+                    break;
                 default:
                     abort($v);
             }
@@ -389,13 +418,11 @@ class Translator extends Preprocessor
             $this->genClassStubFile($class, $this->file);
         }
 
-        $this->classDef = new ClassDef();
-        $this->classDef->name = $this->class;
+        $this->classDef = new ClassDef($this->class, $this->namespace);
         if ($class->extends) {
             $this->classDef->extends = $this->parseIdentifier($class->extends);
         }
         $this->classDef->implements = $this->parseIdentifierList($class->implements);
-        $this->classDef->namespace = $this->namespace;
 
         $this->classes[$this->class] = $this->classDef;
         $this->classesDefineInFile[$this->class] = $this->classDef;
@@ -475,15 +502,9 @@ class Translator extends Preprocessor
     {
         $cppCode = '';
         $name = $classDef->getNamespacedName();
-
-        if ($classDef->extends) {
-            $parentName = 'zend_class_entry *parent_ce';
-            $param = 'parent_ce';
-        } else {
-            $parentName = '';
-            $param = '';
-        }
-        $cppCode .= 'zend_class_entry *' . $this->getRegisterClassFunction($name) . '(' . $parentName . ') {' . PHP_EOL;
+        $argsDef = $this->getRegisterClassFunctionArgDef($classDef);
+        $param = $this->getRegisterClassFunctionArgs($classDef);
+        $cppCode .= 'zend_class_entry *' . $this->getRegisterClassFunction($name) . '(' . $argsDef . ') {' . PHP_EOL;
         $cppCode .= $this->getIndent() . 'return register_class_' . $name . '(' . $param . ');' . PHP_EOL;
         $cppCode .= '}' . PHP_EOL . PHP_EOL;
 
@@ -683,4 +704,10 @@ class Translator extends Preprocessor
         }
         return $list;
     }
+
+    private function parseInterface(Node $v): void
+    {
+        $name = $this->parseIdentifier($v->name);
+        $this->interfaces[$name] = new InterfaceDef($name, $this->namespace);
+    }
 }
\ No newline at end of file
diff --git a/src/template/extension.cc.php b/src/template/extension.cc.php
index 319d07d9..cd5a0c34 100644
--- a/src/template/extension.cc.php
+++ b/src/template/extension.cc.php
@@ -25,9 +25,9 @@ zend_class_entry * <?= $this->getClassCe($classDef) ?>;
 <?php
 foreach ($this->classes as $classDef):
     $name = $classDef->getNamespacedName();
-    $parentCe = $classDef->extends ? 'zend_class_entry *parent_ce' : '';
+    $argDef = $this->getRegisterClassFunctionArgDef($classDef);
 ?>
-extern zend_class_entry *<?= $this->getRegisterClassFunction($name) ?>(<?= $parentCe ?>);
+extern zend_class_entry *<?= $this->getRegisterClassFunction($name) ?>(<?= $argDef ?>);
 <?php endforeach; ?>
 
 // literal strings
@@ -59,13 +59,23 @@ static const zend_function_entry ext_functions[] = {
 };
 
 static PHP_MINIT_FUNCTION(app) {
+// class
 <?php
 foreach ($this->classes as $classDef):
     $name = $classDef->getNamespacedName();
-    $parentCe = $this->getParentClassCe($classDef);
+    $params = $this->getRegisterClassFunctionArgs($classDef);
     $fn = $this->getRegisterClassFunction($name);
 ?>
-    <?=$this->getClassCe($classDef)?> = <?= $fn ?>(<?= $parentCe ?>);
+    <?=$this->getClassCe($classDef)?> = <?= $fn ?>(<?= $params ?>);
+<?php endforeach; ?>
+
+
+<?php
+foreach ($this->interfaces as $interfaceDef):
+    $name = $interfaceDef->name;
+    $fn = $this->getRegisterClassFunction($name);
+?>
+    <?=$this->getClassCe($interfaceDef)?> = <?= $fn ?>();
 <?php endforeach; ?>
 
     return SUCCESS;
diff --git a/tests/aot/for.phpt b/tests/aot/for.phpt
new file mode 100644
index 00000000..0ac682ee
--- /dev/null
+++ b/tests/aot/for.phpt
@@ -0,0 +1,19 @@
+--TEST--
+for statement
+--FILE--
+<?php
+function main()
+{
+    $i = 100;
+    $arr = [];
+    for($i = 0; $i < 100; $i++) {
+        $arr[] = $i;
+    }
+    var_dump(count($arr));
+    echo $arr[49];
+    echo "\n";
+}
+?>
+--EXPECT--
+int(100)
+49
\ No newline at end of file
diff --git a/tests/aot/foreach.phpt b/tests/aot/foreach.phpt
new file mode 100644
index 00000000..1570a7f9
--- /dev/null
+++ b/tests/aot/foreach.phpt
@@ -0,0 +1,19 @@
+--TEST--
+foreach statement
+--FILE--
+<?php
+function main()
+{
+    $v = 199;
+    $arr = range(0, 99);
+    $c = 0;
+    foreach ($arr as $v) {
+        $c += $v;
+    }
+    var_dump($c);
+    var_dump($v);
+}
+?>
+--EXPECT--
+int(4950)
+int(199)
diff --git a/tests/core/classes/inheritance.phpt b/tests/core/classes/inheritance.phpt
new file mode 100644
index 00000000..4024b5e3
--- /dev/null
+++ b/tests/core/classes/inheritance.phpt
@@ -0,0 +1,58 @@
+--TEST--
+Classes inheritance test
+--FILE--
+<?php
+
+/* Inheritance test.  Pretty nifty if I do say so myself! */
+
+class foo {
+  public $a;
+  public $b;
+  function display() {
+    echo "This is class foo\n";
+    echo "a = ".$this->a."\n";
+    echo "b = ".$this->b."\n";
+  }
+  function mul() {
+    return $this->a*$this->b;
+  }
+};
+
+class bar extends foo {
+  public $c;
+  function display() {  /* alternative display function for class bar */
+    echo "This is class bar\n";
+    echo "a = ".$this->a."\n";
+    echo "b = ".$this->b."\n";
+    echo "c = ".$this->c."\n";
+  }
+};
+
+function main() {
+    $foo1 = new foo;
+    $foo1->a = 2;
+    $foo1->b = 5;
+    $foo1->display();
+    echo $foo1->mul()."\n";
+
+    echo "-----\n";
+
+    $bar1 = new bar;
+    $bar1->a = 4;
+    $bar1->b = 3;
+    $bar1->c = 12;
+    $bar1->display();
+    echo $bar1->mul()."\n";
+}
+?>
+--EXPECT--
+This is class foo
+a = 2
+b = 5
+10
+-----
+This is class bar
+a = 4
+b = 3
+c = 12
+12