问题
I have a year (2002) and I'm trying to get it into the following format:
2002-00-00T00:00:00
I tried various iterations, the last of which was this:
$testdate = DateTime::createFromFormat(DateTime::ISO8601, date("c"))
echo date_format($testdate, '2002');
But, even if I come close, it always seems to add +00:00 to the end of it...
回答1:
The 'c' format in PHP always appends the timezone offset. You can't avoid that. But you can build the date yourself from components:
date('Y-m-d\TH:i:s', $testdate);
回答2:
Best way is to use constants (PHP 5 >= 5.5.0, PHP 7)
date(DATE_ISO8601, $timeToChange);
Docs: http://php.net/manual/en/class.datetimeinterface.php#datetime.constants.types
回答3:
date('Y-m-d\TH:i:s\Z', time() - date('Z'));
来源：https://stackoverflow.com/questions/7367953/php-format-date-iso8601