Re: PHP number auto-converting doesn't work for negative #'s without a leading digit

On Wed, 9 Feb 2005 07:47:01 -0800 (PST), Jesus M. Castagnetto <jcastagnetto@yahoo.com> wrote: > Autoconversions in any language are not always perfect (in particular from > string representations to numbers), that is why I tend to cast in my own code. > > In this case, it might be a question of tunning the Zend parser to recognize > the abbreviated construct you show as a valid float, although strictly it > should have the zero in front (it is just customary to sometimes omit it). > > Also, you might want to reclassify it as a Zend Engine or Scripting Engine bug, > as the decision as to whether something looks like a float is done in places > like: php-src/ZendEngine2/zend_operators.h:is_numeric_string() It's already fixed in the snapshot, so no need to reclassify. The reason I had this problem was that Oracle returned those strings for a NUMBER column. I *should* have casted it, but I have assumed with PHP it handles them correctly. > > Cheers. > > --- Justin Patrin <papercrane@gmail.com> wrote: > > > Just thought you all might like to know: > > http://bugs.php.net/bug.php?id=31889 > > > > This is a pretty simple bug which affects scripts which assume PHP > > will convert a string to a number automatically. It will except for > > strings such as: "-.55" with no leading digit. Using (float) before > > the string works fine, but the auto-conversion doesn't. See the second > > reproduce code in the bug for an example (forget the first one, I > > screwed that one up :-/ ). > > -- Justin Patrin