From: shshzi at gmail dot com
Operating system: Linux i386
PHP version: 5.2.1
PHP Bug Type: Reproducible crash
Bug description: serialize takes huge amount of memory
Description:
------------
when using serialize on some large (not huge) array, it will take insane
amounts of memory.
look at the code , when using size array of 30,000 , the script works
as expected, indicating that the output is a mere 2MB in length,
while enlarging the array to 50,000 elements causes php to go crazy and
hit the 600MB i've allowed him to consume...
Reproduce code:
---------------
<?
$a = array();
for($i=0;$i<50000;$i++)
{
$a[$i] = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
}
$z = serialize($a);
print strlen($z);
?>
--
Edit bug report at http://bugs.php.net/?id=41220&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=41220&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=41220&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=41220&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=41220&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=41220&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=41220&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=41220&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=41220&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=41220&r=support
Expected behavior: http://bugs.php.net/fix.php?id=41220&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=41220&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=41220&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=41220&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=41220&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=41220&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=41220&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=41220&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=41220&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=41220&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=41220&r=mysqlcfg
