From: marcus dot mueller at grintsch dot com
Operating system: Linux gdev 2.6.25-2-amd64 #1 SMP
PHP version: 5.2.6
PHP Bug Type: *General Issues
Bug description: Strange eval() behaviour
Description:
------------
I'm not quite sure this is a bug, so if it isn't please excuse my
ignorance.
Running the script below on a produces a "PHP Parse error: memory
exhausted".
Lowering 9994 to 9993 doesn't expose this behaviour and produces the
expected result (well, "boolean false" oc).
>From the PHP manual: "PHP imposes no boundary on the size of a string; the
only limit is the available memory of the computer on which PHP is
running".
The box I'm running this on has 4GB.
Reproduce code:
---------------
<?php
for($foo='',$i=0;$i<9994;$i++) {
$foo.='1+';
}
eval('$foo='.$foo.' 1;var_dump($foo);');
for($foo='',$i=0;$i<9994;$i++) {
$foo.='!';
}
eval('$foo='.$foo.' 1;var_dump($foo);');
?>
Expected result:
----------------
int 9995
boolean true
Actual result:
--------------
int(9995)
Parse error: memory exhausted in not.php(10) : eval()'d code on line 1
--
Edit bug report at http://bugs.php.net/?id=45762&edit=1
--
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=45762&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=45762&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=45762&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=45762&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=45762&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=45762&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=45762&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=45762&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=45762&r=support
Expected behavior: http://bugs.php.net/fix.php?id=45762&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=45762&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=45762&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=45762&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=45762&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=45762&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=45762&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=45762&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=45762&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=45762&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=45762&r=mysqlcfg
