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[2009-04-23 12:35 UTC] derick@php.net
[2009-04-24 08:25 UTC] wharmby at uk dot ibm dot com
[2009-05-03 18:24 UTC] derick@php.net
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Last updated: Mon Oct 27 15:00:01 2025 UTC |
Description: ------------ First entry in array returned by DateTimeZone method getTransitions (and function timezone_transitions_get()looks bogus on 64 bit systems. I expected same result when running this command on 32 and 64 bit systems. Problem affects current levels of PHP 5.3 and 6.0 (snapshot timestamp == Wed 22-04-2009 6:30:00 ) only. Looks like problem caused by use of constant LONG_MIN at around line 3218 in current src of ext/dates/date.c introduced by the following change: ===================================================================== Revision 1.43.2.45.2.51.2.28 - (view) (download) (as text) (annotate) - [select for diffs] Thu Mar 20 19:43:36 2008 UTC (13 months ago) by derick Branch: PHP_5_3 Changes since 1.43.2.45.2.51.2.27: +57 -24 lines Diff to previous 1.43.2.45.2.51.2.27 , to branch point 1.43.2.45.2.51 - MFH: Fix the DateTimeZone::getTransitions() algorithm. ====================================================================== Reproduce code: --------------- <?php date_default_timezone_set("Europe/London"); $tz = new DateTimeZone("Europe/London"); $tran = $tz->getTransitions(); var_dump( $tran ); ?> Expected result: ---------------- (as produced by same code running on Linux 32 bits system) array(243) { [0]=> array(5) { ["ts"]=> int(-2147483648) ["time"]=> string(24) "1901-12-13T20:45:52+0000" ["offset"]=> int(3600) ["isdst"]=> bool(true) ["abbr"]=> string(3) "BST" } Actual result: -------------- array(243) { [0]=> array(5) { ["ts"]=> int(-9223372036854775808) <- == LONG_MIN ["time"]=> string(30) "-219246529-01-27T08:29:52+0000" <- Bogus looking entry ["offset"]=> int(3600) ["isdst"]=> bool(true) ["abbr"]=> string(3) "BST" }