From: csaba at alum dot mit dot edu
Operating system: Win XP
PHP version: 5CVS-2007-01-25 (snap)
PHP Bug Type: Scripting Engine problem
Bug description: echo ... | php -a function allocation eats memory
Description:
------------
The following command line (single line in the cmd window) call does not
work unless memory_limit is set to 9M or higher in php.ini on my Win XP
Pro:
echo ^^^<?php $p='function f';$s='(){}';
for($i=0;++$i^^^<7;) eval($p.$i.$s);
print('success'); ?^^^> | php.exe -a
It complains about having run out of memory:
Interactive mode enabled
Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to
allocate 786432 bytes) in C:\phpLib\-(1) : eval()'d code on line 1
Reproduce code:
---------------
<?php
// name this file test.php
function func1() { }
function func2() { }
function func3() { }
function func4() { }
function func5() { }
function func6() { }
function func7() { }
print ('success');
?>
The invocation line above looks a little scary (but it's just a loop to
define functions) - the below single line achieves the same result:
echo ^^^<?php include('test.php'); ?^^^> | php -a
Expected result:
----------------
I expect the default configuration (of 8M) to be more than enough for
trivial code to be invoked with the -a option.
Indeed,
php.exe -r "include(test.php);"
works just fine
It seems like each function declaration gobbles over 1M of memory when php
is invoked with the -a option. I use the -a construct frequently since
php-cgi.exe does not allow the -r construct, and I've noticed that between
July and December of 2006 is when this problem started happening.
In particular, I have an auto_prepend_file with about 50 functions defined
and for php to start running on this requires that I set memory_limit to
56M minimum so that the php invocations with -a can run!
Actual result:
--------------
Tested on the most recent snaps of PHP 5.2 and PHP 6.
Csaba Gabor from Vienna
--
Edit bug report at http://bugs.php.net/?id=40236&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=40236&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=40236&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=40236&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=40236&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=40236&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=40236&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=40236&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=40236&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=40236&r=support
Expected behavior: http://bugs.php.net/fix.php?id=40236&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=40236&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=40236&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=40236&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=40236&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=40236&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=40236&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=40236&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=40236&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=40236&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=40236&r=mysqlcfg
