Bug #66836 [Ver]: DateTime::createFromFormat 'U' with pre 1970 dates fails parsing

Edit report at https://bugs.php.net/bug.php?id=66836&edit=1 ID: 66836 Updated by: derick@php.net Reported by: rami dot alnawas at gmail dot com Summary: DateTime::createFromFormat 'U' with pre 1970 dates fails parsing Status: Verified Type: Bug Package: Date/time related Operating System: Ubuntu PHP Version: Irrelevant Assigned To: cmb Block user comment: N Private report: N New Comment: @cmb, I can't reproduce that: [GIT: PHP-5.6][PHP: 5.6.20-dev ] derick@whisky:~/dev/php/php-src.git $ php <?php $timestamp = '-1'; $dt = DateTime::createFromFormat('U', $timestamp); var_dump($dt, $dt->format('U'), $timestamp); ?> But fixed in .25-dev: [GIT: PHP-5.6][PHP: 5.6.25-dev ] derick@whisky:~/dev/php/php-src.git $ php <?php $timestamp = '-1'; $dt = DateTime::createFromFormat('U', $timestamp); var_dump($dt, $dt->format('U'), $timestamp); ?> -:4: class DateTime#1 (3) { public $date => string(26) "1969-12-31 23:59:59.000000" public $timezone_type => int(1) public $timezone => string(6) "+00:00" } -:4: string(2) "-1" -:4: string(2) "-1" Previous Comments: ------------------------------------------------------------------------ [2016-07-11 13:11:54] cmb@php.net Related To: Bug #66836 ------------------------------------------------------------------------ [2016-07-11 13:11:53] cmb@php.net I can confirm that the issue is solved in PHP-7.0 and master, but not in PHP-5.6, as the following PHPT fails there: --TEST-- Bug #66836 (DateTime::createFromFormat 'U' with pre 1970 dates fails parsing) --FILE-- <?php $timestamp = '-1'; $dt = DateTime::createFromFormat('U', $timestamp); var_dump($dt->format('U') === $timestamp); ?> --EXPECT-- bool(true) ------------------------------------------------------------------------ [2016-07-11 12:52:38] derick@php.net I've pushed it to 5.6 and up - there is no need for a further back port. ------------------------------------------------------------------------ [2016-07-11 12:35:05] cmb@php.net I can confirm the issue, see <https://3v4l.org/mT3CX>. However, it has recently been fixed in master[1], and might be backported. [1] <https://github.com/php/php-src/commit/822ca45220db0b864af9dc79b94bda03a9323621> ------------------------------------------------------------------------ [2014-03-06 14:29:22] rami dot alnawas at gmail dot com Description: ------------ When DateTime::createFromFormat('U', strtotime('1962-11-17T00:00:00+00:00') is executed the result is false as strtotime('1962-11-17T00:00:00+00:00') is negative. Using date function with the same input works OK Test script: --------------- echo date('YmdHis', strtotime('1962-11-17T00:00:00+00:00')); // 19621117000000 print_r(DateTime::createFromFormat('U', strtotime('1962-11-17T00:00:00+00:00'), new \DateTimeZone('UTC'))->format('YmdHis')); // fails as createFromFormat returns false ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=66836&edit=1