private function get Weeknumber Sunday First Day Of Week(\Date Time Interface $date) I've been flicking through the comments looking for some succinct date code and have noticed an alarming number of questions and over-burdened examples related to date mathematics.
One of the most useful skills you can utilize when performing date math is taking full advantage of the UNIX timestamp.
Maybe you are not aware of it, but the practices you carry out in your projects, whether they are simple or complex, are teaching treasures and techniques that deserve to be shared, and should be made known and recognised by the whole of the European educational community.
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( can produce different, and seemingly incorrect, results depending on your PHP version and your choice of 'w' or 'N' for the Numeric representation of the day of the week: Prior to PHP 5.6.23, this results in: Today is Sun , day 0 of this week.Windows) ten przedział był bardziej ograniczony i zawiera się w przedziale do .Możesz ochronić rozpoznawalne znaki w łańcuchu formatującym przed zinterpretowaniem przez poprzedzenie ich znakiem ucieczki - backslashem.This is very good for SEO especially search engines like Google .Prior to PHP 5.6.23, Relative Formats for the start of the week aligned with PHP's (0=Sunday,6=Saturday).