duanpo2813 2016-11-13 10:28
浏览 104
已采纳

PHP GD .ico处理

Users of my PHP webapp are permitted to upload PNG and JPEG images. Upload algorithm is following:

  1. check extension by file name parsing
  2. check extension by getimagesize()
  3. recreate image by imagecreatefrompng()/imagepng() (imagecreatefromjpeg()/imagejpeg())
  4. rename image
  5. save to filesystem

Image recreation is used for security. Everything works fine. But now i need this algorithm to handle .ico files. It seems like GD doesn't work with .ico (there is no function like imagecreatefromico()), so i don`t know how to implement step 3 of my algorithm.

Thanks for any help or advice.

  • 写回答

1条回答 默认 最新

  • dran0703 2017-01-22 10:17
    关注

    See https://github.com/lordelph/icofileloader for a composer-installable class which can load .ico files into a GD image.

    For example:

    $loader = new Elphin\IcoFileLoader\IcoFileService;
    $im = $loader->extractIcon('/path/to/icon.ico', 32, 32);
    

    See documentation for other methods of analysing and extracting images from the icon file.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

报告相同问题?

悬赏问题

  • ¥15 微信购物商城购物车的所有功能以及购物车,和首页的搜索功能
  • ¥40 servlet的web程序部署出错
  • ¥50 activiti 新建流程系列问题
  • ¥50 为什么我版本升级之后运行速度变慢5倍??
  • ¥15 如何在gazebo中加载机械臂和机械手
  • ¥15 纯运放实现隔离采样方案设计
  • ¥20 easyconnect无法连接后缀带.com的网站,一直显示找不到服务器ip地址,但是带有数字的网站又是可以连接上的,如何解决
  • ¥15 电脑开机过商标后就直接这样,求解各位
  • ¥15 mysql , 用自己创建的本地主机和用户名 登录不上
  • ¥15 关于#web项目#的问题,请各位专家解答!