#19761 [NEW]: Big numbers add problem
| From: | vinicius at teracom dot com dot br | Date: | Fri, 04 Oct 2002 21:03:03 +0000 |
| Subject: | #19761 [NEW]: Big numbers add problem | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-21513@lists.php.net to get a copy of this message | ||
From: vinicius@teracom.com.br
Operating system: Linux Redhat 7.3
PHP version: 4CVS-2002-10-04
PHP Bug Type: Unknown/Other Function
Bug description: Big numbers add problem
Problem find by paulo@teracom.com.br
When run this script everything goes fine until we reach number
2147483647. In php 4.0.4, it turns the number negative. In latest CVS, it
stop add value to the number.
There is the script! To recriate the problem, put the 2147483640 value in
stats.txt and refresh the page many times. The number do not pass
2147483648.
Here's the script.
<?
$counter_file = "stats.txt";
$fp = fopen($counter_file, "r");
$counter = (int)fread($fp, 24);
$close = fclose($fp);
if (!isset($hits)) {
$counter++;
setcookie("hits","1");
} else {
$counter++;
setcookie("hits","$counter");
}
$fp = fopen($counter_file , "w");
fwrite($fp, $counter);
fclose($fp);
print "Number: $counter";
?>
--
Edit bug report at http://bugs.php.net/?id=19761&edit=1
--
Try a CVS snapshot: http://bugs.php.net/fix.php?id=19761&r=trysnapshot
Fixed in CVS: http://bugs.php.net/fix.php?id=19761&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=19761&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=19761&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=19761&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=19761&r=support
Expected behavior: http://bugs.php.net/fix.php?id=19761&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=19761&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=19761&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=19761&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=19761&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=19761&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=19761&r=isapi