The developerWorks tutorial "Locking down your PHP applications" (see Resources) talks about SQL injections: the art of sending malformed data to a database to cause harm or unwarranted access.
developerWorks教程 “锁定您的PHP应用程序”（请参阅参考资料）讨论了SQL注射：将不正常的数据发送到数据库可导致有害或无根据的访问。
Creating line art with this technique will take several hours to do a good job... if you want a tutorial that just applies a couple of filters, then this tutorial is not for you!
创建使用这项技术的线体画需要花费数小时才能达到不错的效果…如果你想要一个仅仅使用一些滤镜(就能达到此效果)的教程，那么本教程并不适合你！
Creating line art with this technique will take several hours to do a good job... if you want a tutorial that just applies a couple of filters, then this tutorial is not for you!
创建使用这项技术的线体画需要花费数小时才能达到不错的效果…如果你想要一个仅仅使用一些滤镜(就能达到此效果)的教程，那么本教程并不适合你！
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