#30970 [NEW]: 32bits not supported?
From: wboring at qualys dot com
Operating system: linux
PHP version: 5.0.2
PHP Bug Type: Scripting Engine problem
Bug description: 32bits not supported?
Description:
If I set an integer to a value of 0x8000, it works properly in php4,
but in php5 the value becomes 0x7FFF.
My configure line:
./configure \
--with-oci8=/u01/app/oracle/product/8.1.7 \
--enable-sigchild \
--with-mcrypt \
--with-gd \
--with-png-dir=/usr \
--with-jpeg-dir=/usr \
--with-zlib-dir=/usr \
--enable-sysvsem \
--enable-sysvshm \
--enable-shmop \
--with-xml \
--with-zlib \
--with-gdbm \
--with-dom \
--with-curl=/usr \
--with-mysql=/usr \
--enable-mbstring \
--enable-tokenizer \
--enable-sockets \
--with-kerberos=/usr/kerberos \
--with-openssl \
--disable-cgi \
--with-xsl \
--with-bz2 \
--with-mhash \
--enable-soap \
--with-flatfile \
--with-inifile \
--with-curlwrappers \
--with-apxs=/usr/local/apache/bin/apxs
Reproduce code:
---
?php
$n = 0x8000;
printf('%b', $n);
?
Expected result:
php4.3.9: 1000
php5.0.2: 1000
Actual result:
--
php4.3.9: 1000
php5.0.2: 111
--
Edit bug report at http://bugs.php.net/?id=30970edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=30970r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=30970r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=30970r=trysnapshot51
Fixed in CVS:http://bugs.php.net/fix.php?id=30970r=fixedcvs
Fixed in release:http://bugs.php.net/fix.php?id=30970r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=30970r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=30970r=needscript
Try newer version: http://bugs.php.net/fix.php?id=30970r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=30970r=support
Expected behavior: http://bugs.php.net/fix.php?id=30970r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=30970r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=30970r=submittedtwice
register_globals:http://bugs.php.net/fix.php?id=30970r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=30970r=php3
Daylight Savings:http://bugs.php.net/fix.php?id=30970r=dst
IIS Stability: http://bugs.php.net/fix.php?id=30970r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=30970r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=30970r=float
MySQL Configuration Error: http://bugs.php.net/fix.php?id=30970r=mysqlcfg
#30970 [Opn]: 32bits not supported?
ID: 30970
User updated by: wboring at qualys dot com
Reported By: wboring at qualys dot com
Status: Open
Bug Type: Scripting Engine problem
Operating System: linux
PHP Version: 5.0.2
New Comment:
If I do a simple var_dump( 0x8000 ); in php4 and 5 I get the same
result of float(2147483648).
If I try and do something like
$n ^= 0x8000; //to flip the high bit, then it breaks.
?php
$n = -1979053311;
var_dump( sprintf('%32b',$n).' '.$n);
$n ^= 0x8000; // flip the high (sign) bit
var_dump( sprintf('%32b',$n).' '.$n );
?
php4.3.9 :
string(45) 10001010101010110001 -1979053311
string(43) 1010101010110001 168430337
php5.0.2 :
string(32) 10001010101010110001 -1979053311
string(44) 0101010101001110 -168430338
Previous Comments:
[2004-12-03 00:46:39] wboring at qualys dot com
Description:
If I set an integer to a value of 0x8000, it works properly in
php4, but in php5 the value becomes 0x7FFF.
My configure line:
./configure \
--with-oci8=/u01/app/oracle/product/8.1.7 \
--enable-sigchild \
--with-mcrypt \
--with-gd \
--with-png-dir=/usr \
--with-jpeg-dir=/usr \
--with-zlib-dir=/usr \
--enable-sysvsem \
--enable-sysvshm \
--enable-shmop \
--with-xml \
--with-zlib \
--with-gdbm \
--with-dom \
--with-curl=/usr \
--with-mysql=/usr \
--enable-mbstring \
--enable-tokenizer \
--enable-sockets \
--with-kerberos=/usr/kerberos \
--with-openssl \
--disable-cgi \
--with-xsl \
--with-bz2 \
--with-mhash \
--enable-soap \
--with-flatfile \
--with-inifile \
--with-curlwrappers \
--with-apxs=/usr/local/apache/bin/apxs
Reproduce code:
---
?php
$n = 0x8000;
printf('%b', $n);
?
Expected result:
php4.3.9: 1000
php5.0.2: 1000
Actual result:
--
php4.3.9: 1000
php5.0.2: 111
--
Edit this bug report at http://bugs.php.net/?id=30970edit=1
