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。