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Modelling Recurring Events in PHP
In a previous article, I described how set operations could be modelled in PHP. With that foundation, we can begin to generate complex date criteria suitable for modelling recurring events. There are a number of different kinds of date condition, which Martin Fowler terms “Temporal Expressions”. Typical temporal expressions include “Last Day in the Month”, […]
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Set Operations in PHP
Modelling Set operations in PHP using object oriented classes to represent Union, Intersection and Difference.