PHP 4.0 Bug #6884 Updated: problem getting a double variable from binary file

ID: 6884 Updated by: stas Reported By: heinrich@noiseconcept.de Status: Feedback Bug Type: Variables related Assigned To: Comments: Failed to reproduce the behaviour. Could you please provide a binary string that is decoded incorrectly by unpack? Also, note that unpack has different syntax than in perl (see the manual) so doesn't do what you want, you should do $price=unpack("dvar",...) and use $price["var"] then. Previous Comments: --------------------------------------------------------------------------- [2000-09-26 02:40:06] heinrich@noiseconcept.de Hi! Probably this isn't a true bug, bit I couldn't find ANY one (tried Newsgroups/IRC/Doc's..) who could explain this to me: I'm reading a price list from a file in which there are (beyond other stuff) Product name and price saved. Extracting the Product name is no problem but the price is saved as a 8byte-double variable. So I used: $price=unpack("d",substr($contents,211,8)); But this results in absolutely strange values like 8.3...+E-311 and so on. My file is valid since I've also programmed this using Borland Delphi. There I use the command "move" to move the part of the memory where the file buffer is saved directly to the address of a double variable. There it works quite fine. So - what's wrong? (Although I'm KNOW that it's an 8byte double I tried with any other decoding method from unpack like float, single and so on... Nothing worked.. Please contact me If you know anything about that, it's quite important for me :-} Tnx a lot! - bye! --------------------------------------------------------------------------- Full Bug description available at: http://bugs.php.net/?id=6884