note 103158 added to datetime.createfromformat

Beware specifying a timezone in the format as it will take precedence over the DateTimeZone object. <?php $timezone = "UTC"; // or any other valid name for a timezone $d= DateTime::createFromFormat("Y-m-d H:i:s T","2011-11-06 00:00:00 EDT",new DateTimeZone($timezone)); echo $d->format("Y-m-d H:i:s T - U"); // returns "2011-11-06 00:00:00 EDT - 1320552000" // specifying $timezone = "Pacific/Honolulu"; would return the same string ?> This gets hairy when you are playing with transition from summer time to winter time! For instance, in Toronto, the time change happens on 2011-11-06. One second after 01:59:59 (EDT), the time becomes 01:00:00 (EST), or 1320559200 in Unix timestamp. However, notice the following: <?php $d = DateTime::createFromFormat("Y-m-d H:i:s","2011-11-06 01:00:00",new DateTimeZone("EST")); echo $d->format("Y-m-d H:i:s T U"); // returns "2011-11-06 01:00:00 EDT 1320555600" instead of "2011-11-06 01:00:00 EST 1320559200" // so the correct way is to do: $d = DateTime::createFromFormat("Y-m-d H:i:s T","2011-11-06 01:00:00 EST",new DateTimeZone($timezone)); // set $timezone to any valid string for DateTimeZone, it doesn't matter echo $d->format("Y-m-d H:i:s T U"); // returns "2011-11-06 01:00:00 EST - 1320559200" as wanted ?> ---- Server IP: 66.207.199.35 Probable Submitter: 209.202.82.139 ---- Manual Page -- http://www.php.net/manual/en/datetime.createfromformat.php Edit -- https://master.php.net/note/edit/103158 Del: integrated -- https://master.php.net/note/delete/103158/integrated Del: useless -- https://master.php.net/note/delete/103158/useless Del: bad code -- https://master.php.net/note/delete/103158/bad+code Del: spam -- https://master.php.net/note/delete/103158/spam Del: non-english -- https://master.php.net/note/delete/103158/non-english Del: in docs -- https://master.php.net/note/delete/103158/in+docs Del: other reasons-- https://master.php.net/note/delete/103158 Reject -- https://master.php.net/note/reject/103158 Search -- https://master.php.net/manage/user-notes.php