Re: #18655 [Bgs->Csd]: strtotime() with "next Sunday"

Yup, but it is one of those "clearly wrong" cases. On Sat, 17 Aug 2002, Derick Rethans wrote: > On 30 Jul 2002 rasmus@php.net wrote: > > > Yeah, reading a bit more it looks like you are right. I have fixed > > this in CVS now. "next" maps to "2" now instead of "1" > > Doesn't this break backward compability? > > Derick > > > > > > > Previous Comments: > > ------------------------------------------------------------------------ > > > > [2002-07-30 14:28:58] m.ford@lmu.ac.uk > > > > That's *not* what the spec of strtotime at > > http://www.gnu.org/manual/tar-1.12/html_chapter/tar_7.html > > (linked from > > http://www.php.net/manual/en/function.strtotime.php) says. > > > > I quote: > > > > "A number may precede a day of the week item to move forward > > supplementary weeks. It is best used in expression like `third > > monday'." > > > > and: > > > > "A few numbers may be written out in words in most contexts. ... Here > > is the list: first' for 1, next' for 2, > > `third' for 3, ..." > > > > implying that "next sunday" should return the *second* Sunday from the > > given date. > > > > And, indeed, the following does exactly what the original poster > > intended: > > > > while($now<$date) { > > echo date("l, F j, Y", $now)."<br>"; > > $now=strtotime("2 Sunday", $now); > > } > > > > So the problem would appear to be that, notwithstanding the GNU > > documentation, the PHP strtotime() interpretation of "next" is not, in > > fact, equivalent to 2. > > > > Cheers! > > > > Mike > > > > ------------------------------------------------------------------------ > > > > [2002-07-30 14:11:57] rasmus@php.net > > > > strtotime() will return the first sunday it finds after the given > > timestamp in this case. So you really need to move the timestamp ahead > > each time and ask it to find the next Sunday in order to prevent it > > from finding the same Sunday again. Or perhaps keep adding 1 week > > instead once you found the first one. Watch out for the daylight > > savings switchover though. > > > > ------------------------------------------------------------------------ > > > > [2002-07-30 13:57:20] thearcher@comcast.net > > > > The configure line is: > > './configure' '--enable-ftp' '--enable-bc-math' > > '--enable-gd-native-ttf' '--enable-inline-optimization' > > '--enable-mbstring' '--enable-mbstr-enc-trans' > > '--enable-sysvsem' > > '--enable-sysvshm' '--enable-sockets' '--enable-track-vars' > > '--enable-trans-sid' '--with-freetype-dir=/usr' > > '--with-gd=/usr' > > '--with-imap=/usr' '--with-imlib=/usr' > > '--with-jpeg-dir=/usr' > > '--with-kerberos=/usr/kerberos' '--with-mysql=/usr/local/mysql' > > '--with-openssl=/usr' '--with-png-dir=/usr' > > '--with-t1lib=/usr' > > '--with-ttf=/usr' '--with-xml' '--with-xpm-dir=/usr/X11R6' > > '--with-zlib-dir=/usr' '--with-apache=../apache_1.3.26' > > '--with-snmp' > > '--enable-ucd-snmp-hack' > > > > I was writing a script that was supposed to determine all the Sundays > > between an entered date and the current date. I had a loop in which I > > used "strtotime("next Sunday",$date)". This did not work and just > > returned the sunday after the current date instead of the Sunday after > > the timestamp i gave it. I had used an identical expression outside of > > the loop and it correctly returned the next Sunday of the timestamp i > > gave it. > > > > This script replicates the problem: > > <? > > $now=time(); > > $date=strtotime("November 24, 2002"); > > while($now<$date) { > > echo date("l, F j, Y", $now)."<br>"; > > $now=strtotime("next Sunday", $now); > > } > > ?> > > > > That loop will never terminate as it logically should. > > > > ------------------------------------------------------------------------ > > > > > > -- > > Edit this bug report at > > http://bugs.php.net/?id=18655&edit=1 > > > > --------------------------------------------------------------------------- > Derick Rethans > http://www.derickrethans.nl/ > JDI Media Solutions > http://www.jdimedia.nl/ > --------------------------------------------------------------------------- > >