problems with floating point

[gudushen]

Hi there,

 

I don't know why but my floating point is displaying incorrectly.

 

this is all i did,

 

<?php
$a = 0.5;
echo "a is $a";
?>

 

the browser simply loads forever and eventually fails.

 

if i change $a to something like 0.523, then it displays "a is 0"

if i change $a to 0.53, i get "a is -7.187271;8963E-235" ??????

 

hows that even possible

 

if anyone know why this is happening please let me know.

thanks

 

EDITED BY akitchin: please use code tags in all future posts.

[genericnumber1]

That's incredibly odd... What server are you using?

[gudushen]

That's incredibly odd... What server are you using?

 

i'm not to sure, this is what i got from phpinfo, hope that helps.

 

PHP Version 5.2.6

 

System Linux OpenWrt 2.6.26.5 #69 Fri Jun 26 13:38:04 EDT 2009 mips

Build Date May 17 2009 08:28:36

Configure Command './configure' '--target=mips-linux' '--host=mips-linux' '--build=x86_64-linux-gnu' '--program-prefix=' '--program-suffix=' '--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' '--libexecdir=/usr/lib' '--sysconfdir=/etc' '--datadir=/usr/share' '--localstatedir=/var' '--mandir=/usr/man' '--infodir=/usr/info' '--disable-nls' '--enable-shared' '--disable-static' '--disable-rpath' '--disable-debug' '--without-pear' '--disable-spl' '--with-config-file-path=/etc' '--disable-ipv6' '--enable-magic-quotes' '--enable-memory-limit' '--disable-short-tags' '--disable-ctype' '--disable-dom' '--enable-ftp=shared' '--without-gettext' '--without-iconv' '--disable-libxml' '--without-libxml-dir' '--disable-xmlreader' '--disable-xmlwriter' '--disable-mbstring' '--disable-mbregex' '--with-openssl=shared,/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--with-kerberos=no' '--with-openssl-dir=/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--enable-session=shared' '--disable-simplexml' '--disable-soap' '--enable-sockets=shared' '--disable-tokenizer' '--with-zlib=/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--with-zlib-dir=/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--disable-filter' '--with-curl=shared,/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--with-gd=shared,/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--without-freetype-dir' '--with-jpeg-dir=/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--with-png-dir=/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--without-xpm-dir' '--without-ttf' '--without-t1lib' '--enable-gd-native-ttf' '--disable-gd-jis-conv' '--with-gmp=shared,/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--with-ldap=shared,/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--with-ldap-sasl=/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--with-mysql=shared,/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--with-pcre-regex=shared,/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--with-pgsql=shared,/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--with-sqlite=shared,/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--enable-pdo=shared' '--with-pdo-sqlite=shared,/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--enable-xml=shared,/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--with-libexpat-dir=/home/andy/openwrt/ar71xx/staging_dir/mips/usr' '--enable-apc' '--disable-apc-mmap' '--disable-apc-pthreadmutex' '--enable-exif' '--disable-cli' '--enable-cgi' '--disable-fastcgi' '--enable-force-cgi-redirect' '--enable-discard-path'

Server API CGI

Virtual Directory Support disabled

Configuration File (php.ini) Path /etc

Loaded Configuration File /etc/php.ini

PHP API 20041225

PHP Extension 20060613

Zend Extension 220060519

Debug Build no

Thread Safety disabled

Zend Memory Manager enabled

IPv6 Support disabled

Registered PHP Streams php, file, data, http, ftp, compress.zlib

Registered Stream Socket Transports tcp, udp, unix, udg

Registered Stream Filters string.rot13, string.toupper, string.tolower, string.strip_tags, convert.*, consumed, zlib.*

 

 

[genericnumber1]

OpenWRT? Are you running this thing on a PDA?

 

Sorry, I have no idea what's causing such an odd issue.