How do I convert datetime to ISO 8601 in PHP

How do I convert my time from 2010-12-30 23:21:46 to ISO 8601 date开发者_运维知识库 format? (-_-;)

Object Oriented

This is the recommended way.

$datetime = new DateTime('2010-12-30 23:21:46');

echo $datetime->format(DateTime::ATOM); // Updated ISO8601

Procedural

For older versions of PHP, or if you are more comfortable with procedural code.

echo date(DATE_ISO8601, strtotime('2010-12-30 23:21:46'));

After PHP 5 you can use this: echo date("c"); form ISO 8601 formatted datetime.

http://ideone.com/nD7piL

Note for comments:

Regarding to this, both of these expressions are valid for timezone, for basic format: ±[hh]:[mm], ±[hh][mm], or ±[hh].

But note that, +0X:00 is correct, and +0X00 is incorrect for extended usage. So it's better to use date("c"). A similar discussion here.

How to convert from ISO 8601 to unixtimestamp :

strtotime('2012-01-18T11:45:00+01:00');
// Output : 1326883500

How to convert from unixtimestamp to ISO 8601 (timezone server) :

date_format(date_timestamp_set(new DateTime(), 1326883500), 'c');
// Output : 2012-01-18T11:45:00+01:00

How to convert from unixtimestamp to ISO 8601 (GMT) :

date_format(date_create('@'. 1326883500), 'c') . "\n";
// Output : 2012-01-18T10:45:00+00:00

How to convert from unixtimestamp to ISO 8601 (custom timezone) :

date_format(date_timestamp_set(new DateTime(), 1326883500)->setTimezone(new DateTimeZone('America/New_York')), 'c');
// Output : 2012-01-18T05:45:00-05:00

If you try set a value in datetime-local

date("Y-m-d\TH:i",strtotime('2010-12-30 23:21:46'));

//output : 2010-12-30T23:21

According to PHP offcial documentation you can simply format it to:

echo $objDateTime->format('c'); // ISO8601 formated datetime
echo $objDateTime->format(DateTime::ISO8601); // Another way to get an ISO8601 formatted string

ISO 8601 is basically represented in PHP as "Y-m-d\TH:i:sP"

You can get this value from a constant:

DateTime::ATOM - for PHP versions below 7.2 (was removed)

DateTimeInterface::ATOM - for PHP versions since 7.2

$datetime->format('Y-m-d\TH:i:s.u\Z') should give the proper format, with the "T" separator, "Z" timezone (make sure to convert to UTC first) and microseconds (omit .u if you don't intend to support fractional seconds).

See https://stackoverflow.com/a/9532375/65387 for discussion why should use T

You can try this way:

$datetime = new DateTime('2010-12-30 23:21:46');

echo $datetime->format(DATE_ATOM);

You can also get your timestamps conversion via mutation inside modal like this

class YourModal extends Model
{
    public function getCreatedAtAttribute($date)
    {
        return date(DATE_ISO8601, strtotime($date)); // ISO 8601 Date Format
    }
}