PHP Datetime fail to convert negative ISO8601 date

Question

Converting a negative date with DateTime get me false

Test code

var_dump(\\DateTime::createFromFormat(\\DateTime::ISO8601, \'-0001-11-30T00:00:00+0100\')         


        

Answer 1

According to manual of Format

 public string DateTime::format ( string $format )

where

$format

Format accepted by date().

and if you look in date()

$d->format(\DateTime::ISO8601);

should be

$d->format("c")

because "c" is according to format in date()

ISO 8601 date (added in PHP 5)

In my test $d->format(\DateTime::ISO8601); outputs

2015-09-15T00:00:00+0200

while

$d->format("c");

outputs

2015-09-15T00:00:00+02:00

I hope it helps.