From: twinge at magma dot ca
Operating system: openSuse 10.3
PHP version: 5.2.5
PHP Bug Type: Strings related
Bug description: Comparison of strings containing numbers results in an
incorrect response.
Description:
------------
If two strings containing numbers are compared using an if statement, only
the first 16 bytes of the string are compared. Any bytes after the 16th
byte are ignored in the comparison.
Reproduce code:
---------------
<?PHP
$value1="12345678901234567890123456789012";
$value2="12345678901234567890123456789011";
if ($value1!=$value2){print"Not equal.<br>";}
if ($value1==$value2){print"Equal.<br>";}
var_dump($value1);
print "<br>";
var_dump($value2);
print "<br>";
?>
Expected result:
----------------
Not equal.
string(32) "12345678901234567890123456789012"
string(32) "12345678901234567890123456789011"
Actual result:
--------------
Equal.
string(32) "12345678901234567890123456789012"
string(32) "12345678901234567890123456789011"
--
Edit bug report at http://bugs.php.net/?id=43964&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=43964&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=43964&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=43964&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=43964&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=43964&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=43964&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=43964&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=43964&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=43964&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=43964&r=support
Expected behavior: http://bugs.php.net/fix.php?id=43964&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=43964&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=43964&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=43964&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=43964&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=43964&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=43964&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=43964&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=43964&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=43964&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=43964&r=mysqlcfg
