Let\'s say I have an acyclic directed graph such as a family \"tree\" (not really a tree since a child has 2 parents). I want to place a representation of this graph in a relational database so that i
I\'m looking for a way to represent a family tree in PHP. This means that children will need to inherit from tw开发者_高级运维o (or more) parents.
郑恺苗苗被曝下月补办婚礼，婚庆策划透露很奢华!郑恺示爱用心良苦 4月27日晚上，据知情网友爆料，郑恺苗苗可能要在下个月补办婚礼，消息是由一个婚庆策划人员曝出的，对方还表示婚礼很奢华。就在4月27日晚上，济南绿
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