[Solved] what is the most efficient way to get 1 or 2 day before the first day of week number and year in php with native functions [closed]

by


strtotime('2012W01 - 2 days') for Saturday and
strtotime('2012W01 - 1 day') for Sunday since the week call is always going to return you a Monday.

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solved what is the most efficient way to get 1 or 2 day before the first day of week number and year in php with native functions [closed]