Bug #76731 [NEW]: Date time format parsing is wrong for format Ynd

From: remy dot fox at simbuka dot com Operating system: PHP version: 7.2.8 Package: Date/time related Bug Type: Bug Bug description:Date time format parsing is wrong for format Ynd Description: ------------ The parsing of the date formats 'Ynd' and 'Ymd' gives a wrong result when segment in the date are not separated by any characters. There may be similar issues with other date time format specifier combinations too, but I haven't tested them. Test script: --------------- $date = DateTime::createFromFormat("Ymd", "2000-10-1"); var_dump($date); $date = DateTime::createFromFormat("Ymd", "2000101"); var_dump($date); Expected result: ---------------- As we can see, the first $date returns false, which is correct. After all the day value was not padded with a zero. In the second example, the zero could be interpreted as either part of the month (i.e. october) or as padding for the day value. The result does not return false but it should. object(DateTime)#2 (3) { ["date"]=> string(26) "2000-10-01 05:18:02.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(10) "US/Pacific" } -- Edit bug report at https://bugs.php.net/bug.php?id=76731&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=76731&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=76731&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=76731&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=76731&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=76731&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=76731&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=76731&r=needscript Try newer version: https://bugs.php.net/fix.php?id=76731&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=76731&r=support Expected behavior: https://bugs.php.net/fix.php?id=76731&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=76731&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=76731&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=76731&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=76731&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=76731&r=dst IIS Stability: https://bugs.php.net/fix.php?id=76731&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=76731&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=76731&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=76731&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=76731&r=mysqlcfg