简单的Xml PHP在任何儿童之前添加儿童[复制]
原文：SimpleXml PHP addchild before any child [duplicate]

I know how to add child nodes with SimpleXml and PHP but i have a problem with the orders of those child elements. Lets say i have this xml structure album gallery1 gallery2 gallery2 ...

闪S3 - 从父母班到子女班级的分班活动
原文：Flash AS3 - Dispatching Events from Parent Class to Child Class

我认为,这是一个根本问题,但我似乎无法回避。 基本上,我有父母A级和子女B级,A级即时班B级加子女。 ......