更新

app/Services/DynamicService.php

@@ -247,7 +247,7 @@ class DynamicService
            "content"=>htmlspecialchars($userReportParam->content),
            "info"=>htmlspecialchars($userReportParam->info),
            "status"=>0,
-           "img_url"=>$userReportParam->img_url,
+           "img_url"=>json_encode($userReportParam->img_url),
         ]);
         return true;
     }