body bug

@@ -134,6 +134,7 @@ class Body {
     {
 
         foreach ($this->item as $k=>$item){
+            if(isset($item['type'])){
                 //是否有 =E2=81=B6=E2=81=B6=E2=81=B9=C2=B3=C2=B9=C2=B2=C2=BA=C2=B3=C2=BAS 一样的字符
                 if($item['type']=='text/plain' && preg_match("/(=[A-Z0-9]{2,}){2,}/",$item['body'])){
                     // 进行解码
@@ -142,6 +143,7 @@ class Body {
 
                 $this->item[$k] = $item;
             }
+        }
 
         return $this->item;
     }
@@ -200,9 +202,9 @@ class Body {
             if(!$item) { continue; }
 
             // 邮件体包含邮件体
-            if(preg_match("/boundary=\"(.*)\"/Ui",$item,$bm)){
+            if(preg_match('/boundary="?(.*)("|\r)/i',$item,$bm)){
 
-                if (strpos($item,$bm[1].'--')!==false){
+                if (str_contains($item, trim($bm[1]).'--')){
                     $data = (new self('--'.$bm[1]."\r\n".$item,$this->fileSavePath))->getItem();
 //                    $this->setItem($data);
                     // 合并邮件体
@@ -379,7 +381,9 @@ class Body {
 
 
         // content id
-        preg_match("/Content-ID:[\s].*<[\w\W]{1,}>/i",$item['body'],$result);
+//        preg_match("/Content-ID:[\s].*<[\w\W]{1,}>/i",$item['body'],$result);
+
+        $result[0] = $this->getTag($item['body'],'Content-ID:');
         if (!empty($result[0])){
             $data['content-id'] = explode('<',$result[0]);
             $data['content-id'] = $data['content-id'][1];
@@ -426,6 +430,39 @@ class Body {
     }
 
     /**
+     * 获取某个tag
+     * @param $content
+     * @param $tag
+     * @return string
+     * @author：dc
+     * @time 2023/10/30 22:45
+     */
+    public function getTag($content,$tag){
+        $items = explode("\n",$content);
+        $ctstr = '';
+        foreach ($items as $str){
+            if($ctstr){
+
+                if(empty(trim($str))){
+                    break;
+                }
+                if(str_starts_with($str, "\t")||str_starts_with($str, " ")){
+                    $ctstr .= $str."\n";
+                }else{
+                    break;
+                }
+            }
+
+            if(str_starts_with(strtolower($str), strtolower($tag))){
+                $ctstr .= $str."\n";
+            }
+
+        }
+
+        return trim($ctstr);
+    }
+
+    /**
      * 删除tag
      * @param $body
      * @param $tag
@@ -434,10 +471,11 @@ class Body {
      * @time 2022/8/12 10:34
      */
     private function body_remove_tag($body,$tag){
-        preg_match("/{$tag}\r?[\w\W].*/i",$body,$result);
-        if(!empty($result[0])) {
-            $body = str_replace($result, '', $body);
-        }
+        $str = $this->getTag($body,$tag);
+//        preg_match("/{$tag}\r?[\w\W].*/i",$body,$result);
+//        if(!empty($result[0])) {
+            $body = str_replace($str, '', $body);
+//        }
         return $body;
     }
 
@@ -470,9 +508,27 @@ class Body {
      * @time 2022/8/12 10:26
      */
     private function preg_match_type($item){
-        // 匹配内容 type
-        preg_match("/Content-Type:[\w\W].*/i",$item,$result);
+        $items = explode("\n",$item);
+        $ctstr = '';
+        foreach ($items as $str){
+            if($ctstr){
 
+                if(str_starts_with($str, "\t")){
+                    $ctstr .= $str."\n";
+                }else{
+                    break;
+                }
+            }
+
+            if(str_starts_with($str, 'Content-Type:')){
+                $ctstr .= $str."\n";
+            }
+
+        }
+
+        // 匹配内容 type
+//        preg_match("/Content-Type:[\w\W].*/i",$item,$result);
+        $result[0] = $ctstr;
         if(!empty($result[0])){
             $ret['origin'] = trim($result[0]);
             // type