#30663 [NEW]: strtotime not decrementing minutes correctly

From: alistair at maclean-nj dot com Operating system: Linux (RH9) PHP version: 5.0.2 PHP Bug Type: Date/time related Bug description: strtotime not decrementing minutes correctly Description: ------------ Trying to subtract 1 minute from a time string, using the strtotime() function. Under PHP 4.x the function works. Under 5.0.2 and the php5-STABLE-200411021330 CVS version the function does not work as advertised. The compile file is : ./configure --with-apxs2=/usr/local/apache2/bin/apxs --enable-force-cgi-redirect --disable-debug --disable-rpath --enable-inline-optimization --with-openssl --with-xml --with-zlib --with-layout=REDHAT --enable-magic-quotes --enable-safe-mode --enable-sockets --enable-sysvsem --enable-sysvshm --enable-discard-path --enable-track-vars --enable-trans-sid --enable-wddx --without-oci8 --with-pear=/usr/share/pear --with-mysql=shared,/usr --with-mysqli=/usr/bin/mysql_config --with-soap The php.ini file is standard except that the include path has been enabled to include the pear directory (/usr/share/pear) and a number of search paths (like ../objects:../../objects), and the extension=mysql.so is made. Reproduce code: --------------- <?php function ModifyEndTime($endtime) { $first_iter = strtotime($endtime); // 1 // Remove that minute! $second_iter = strtotime( "-1 minute", $first_iter); // 2 // $second_iter = strtotime( "-1 minute", $endtime); // 3 $newtime = date('H:i:s',$second_iter); echo "Entry time was : {$endtime} processed time is : {$newtime}\n"; } ModifyEndTime("07:01:00"); ModifyEndTime("07:00:00"); ?> Expected result: ---------------- Entry time was : 07:01:00 processed time is : 07:00:00 Entry time was : 07:00:00 processed time is : 06:59:00 As produced by running on PHP 4.3.8 Actual result: -------------- Entry time was : 07:01:00 processed time is : 23:59:00 Entry time was : 07:00:00 processed time is : 23:59:00 if lines with ending comments 1 & 2 are commented out and line with ending comment 3 is used instead (only running through strtotime() once) the the following is produced: Entry time was : 07:01:00 processed time is : 18:59:59 Entry time was : 07:00:00 processed time is : 18:59:59 -- Edit bug report at http://bugs.php.net/?id=30663&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=30663&r=trysnapshot4 Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=30663&r=trysnapshot50 Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=30663&r=trysnapshot51 Fixed in CVS: http://bugs.php.net/fix.php?id=30663&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=30663&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=30663&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=30663&r=needscript Try newer version: http://bugs.php.net/fix.php?id=30663&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=30663&r=support Expected behavior: http://bugs.php.net/fix.php?id=30663&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=30663&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=30663&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=30663&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=30663&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=30663&r=dst IIS Stability: http://bugs.php.net/fix.php?id=30663&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=30663&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=30663&r=float MySQL Configuration Error: http://bugs.php.net/fix.php?id=30663&r=mysqlcfg