Php datetime createfromformat iso 8601

Nobody mentioned to use DATE_ATOM which is as far as i know phps most correct implementation of ISO 8601. It should at least work for the last 3 of these:

To be able to parse all of them i wrote a tiny function:

As @Glutexo mentioned it works only if there are only 1 to 6 precision digits for the decimal part, too. Feel free to improve it.

PHP DateTime class – parsing and formatting ISO8601 dates with or w/o fractions of a second

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