On 6 April 2011 21:08, David Harkness <david.h@xxxxxxxxxxxxxxxxx> wrote: > On Tue, Apr 5, 2011 at 8:28 AM, Richard Quadling <rquadling@xxxxxxxxx> > wrote: >> >> php -r "var_dump(10...19);" >> >> Interesting output ... >> >> string(6) "100.19" >> >> And that took me a little while to work out. >> >> It's all to do with PHP's type juggling. >> >> 10...19 >> >> What I'm not sure is why the middle empty string is output as 0. >> >> "10" . . ".19" becomes "10" . "0" . ".19" which becomes "100.19" > > My guess is that PHP parses this as > Â Â 10<decimal-point> <dot-operator>Â<decimal-point>19 > Because the dot operator requires strings, PHP converts both numbers to > strings as > Â Â '10' <dot-operator> '0.19' > which becomes your > Â Â 100.19 > You can see this with > Â Â php > echo (string) 10. > Â Â 10 > Â ÂÂphpÂ> echo (string) .19 > Â Â 0.19 > David > Aha! Yes. That makes a LOT more sense. Excellent deduction. So. Not a bug at all. Just a really weird sequence. And obviously, spaces and more dots can't work. Richard. -- Richard Quadling Twitter : EE : Zend @RQuadling : e-e.com/M_248814.html : bit.ly/9O8vFY -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
