Re: PHP 4.0 Bug #6425 Updated: date() parsing functionality provides unexpected results.

It seems somewhat fixed, though now it reports an "unknown error" for each of the dates which it had problems for in the past. Enclosed is a log of the program output which was generated by the code snippet below using PHP 4.0.4 development version dated 22 Oct 2000 ----- Original Message ----- From: Bug Database <php-dev@lists.php.net> To: <hirschf@home.com> Sent: Thursday, November 02, 2000 3:12 PM Subject: PHP 4.0 Bug #6425 Updated: date() parsing functionality provides unexpected results. > ID: 6425 > Updated by: dbeu > Reported By: hirschf@home.com > Status: Feedback > Bug Type: Date/time related > Assigned To: > Comments: > > could you plese try the dev build from php4win.de and report wheter this is fixed? > > Previous Comments: > -------------------------------------------------------------------------- - > > [2000-09-06 17:16:51] sniper@php.net > reclassified.. > > -------------------------------------------------------------------------- - > > [2000-09-06 17:15:54] sniper@php.net > User feedback: > --------------------------- > I was actually contacted on this issue once, and sent a corrected reply as > follows. Keep in mind, this issue only occurs in _Windows_ versions of PHP > including PHP 4.0.1pl2 and 4.0.2. UNIX varients do not seem effected.: > > I've written a specific script to show this issue: > > --- cut --- > <?php > for ( $i = 1900; $i < 2050; $i++) { > $datep = "$i-01-01"; > print "Trying: $datep ... "; > print date("F j, Y", strtotime($datep)); > print "<BR>"; // For clean display sake only > } > ?> > --- cut --- > > I also tested this with dates in 12-31, and 1969 failed, so 1970-01-01 is > the lowest possible date: > > --- cut --- > Trying: 1900-01-01 ... > Warning: unexpected error in date() in d:fhirschmysitetestdate.php on > line 6 > > Trying: 1901-01-01 ... > Warning: unexpected error in date() in d:fhirschmysitetestdate.php on > line 6 > > Trying: 1902-01-01 ... > Warning: unexpected error in date() in d:fhirschmysitetestdate.php on > line 6 > . > . > . > Trying: 1969-01-01 ... > Warning: unexpected error in date() in d:fhirschmysitetestdate.php on > line 6 > > Trying: 1970-01-01 ... January 1, 1970 > Trying: 1971-01-01 ... January 1, 1971 > Trying: 1972-01-01 ... January 1, 1972 > Trying: 1973-01-01 ... January 1, 1973 > Trying: 1974-01-01 > . > . > . > Trying: 2038-01-01 ... January 1, 2038 > Trying: 2039-01-01 ... > Warning: unexpected error in date() in d:fhirschmysitetestdate.php on > line 6 > > Trying: 2040-01-01 ... > Warning: unexpected error in date() in d:fhirschmysitetestdate.php on > line 6 > ... January 1, 1974 > --- cut --- > > It seems likely that the date() function uses internal calls within the O/S > somehow on Windows, as this would correlate to what Windows/MSDOS is > (in)capable of doing. However, it hardly seems to be a desirable side-effect > in a production quality programming language. Anyhow, let me know if there > is other documentation you need from me. > > --------------------------------------- > > Editorial note: PLEASE answer next time using the > web-interface.. =) > > --Jani > > > -------------------------------------------------------------------------- - > > [2000-09-05 19:43:17] sniper@php.net > Your example code was buggy, below corrected one: > > <?php > > function parseDate($date,$format) { > $dateString = date($format , strtotime($date)); > return $dateString; > } > > $db_birth_date = "1969-09-13 00:00:00"; > $birth_date = parseDate($db_birth_date,"F j, Y"); > echo $birth_date; > > ?> > > And this works just like it should (in Linux).. > Please try this and report back. > > --Jani > > -------------------------------------------------------------------------- - > > [2000-08-29 19:58:01] hirschf@home.com > On Windows NT, using Apache tested in PHP 4.0.1PL2, 4.0.2 for Win NT using > Apache CGI PHP. The function date() with MySQL date format of > > YYYY-MM-DD HH:MI:SS > > yields an error when using dates with a value lower than 1970-01-01 00:00:00. > The following error is actually reported: > > Warning: unexpected error in date() in Program.php line XXX > > Below is a script which reproduces this error: > > $db_birth_date = "1969-09-13 00:00:00"; > $birth_date = $parseDate($db_birth_date',"F j, Y"); > > function parseDate($date,$format) { > $dateString = date($format , strtotime($date)); > return $dateString; > } > > Have not tested this issue on UNIX system yet. > > -------------------------------------------------------------------------- - > > > Full Bug description available at: http://bugs.php.net/?id=6425 >

Attachment: [application/octet-stream] test.log