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How I Could Compare Two Dates To Find The Number Of Days That Seperate Them.


I was wondering how I could compare two dates to find the number of days that seperate them. For instance, after a user signs up to my website, they would see a specific message for only a week. Obviously this is easy if they signed up on the 14th and today is the 16th, but what about if they signed up on the 29th, then I need to figure out for the next month.




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