From: alexander dot carver at gmail dot com
Operating system: Debian 6.0
PHP version: 5.4.4
Package: Reflection related
Bug Type: Bug
Bug description:Attempting to invoke a Closure more than once causes segfault
Description:
------------
The code below should be fairly self-explanatory. Invoking a reflection of
the
__invoke method of the Closure class more than once per reflection instance
causes a segfault. This happens regardless of context or argument
parameters
passed to ReflectionMethod::invokeArgs(). Can't imagine this is a common
use case
but thought I'd share anyway.
PHP Version is 5.3.14.
I don't have php configured to get a backtrace at the moment, and my .ini
is
pretty average. If you can't reproduce it with the script below I'll look
into it
more.
php5 -m :
[PHP Modules]
apc
bcmath
bz2
calendar
Core
ctype
curl
date
dba
dom
ereg
exif
fileinfo
filter
ftp
gd
gettext
hash
iconv
json
libxml
mbstring
mhash
mysql
mysqli
mysqlnd
openssl
pcntl
pcre
PDO
pdo_mysql
pdo_sqlite
Phar
posix
readline
Reflection
session
shmop
SimpleXML
soap
sockets
SPL
SQLite
sqlite3
ssh2
standard
sysvmsg
sysvsem
sysvshm
tokenizer
wddx
xdebug
xml
xmlreader
xmlwriter
yaml
zip
zlib
[Zend Modules]
Xdebug
Test script:
---------------
<?php
$closure1 = function($val){ return $val; };
$closure2 = function($val){ return $val; };
$reflection_class = new ReflectionClass($closure1);
$reflection_method = $reflection_class->getMethod('__invoke');
$arguments1 = array('hello');
$arguments2 = array('world');
// Invoking once is OK...
print $reflection_method->invokeArgs($closure1, $arguments1);
if(true){
// But don't do it again!
#print $reflection_method->invokeArgs($closure1, $arguments1);
// Using different arguments per invokation makes no difference :(
#print $reflection_method->invokeArgs($closure1, $arguments2);
// Doesn't matter if you attempt to invoke a different closure with the
same reflection.
print $reflection_method->invokeArgs($closure2, $arguments1);
}
?>
Expected result:
----------------
"helloworld" printed
Actual result:
--------------
Segmentationfault
--
Edit bug report at https://bugs.php.net/bug.php?id=62384&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=62384&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=62384&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=62384&r=trysnapshottrunk
Fixed in SVN:
https://bugs.php.net/fix.php?id=62384&r=fixed
Fixed in SVN and need be documented:
https://bugs.php.net/fix.php?id=62384&r=needdocs
Fixed in release:
https://bugs.php.net/fix.php?id=62384&r=alreadyfixed
Need backtrace:
https://bugs.php.net/fix.php?id=62384&r=needtrace
Need Reproduce Script:
https://bugs.php.net/fix.php?id=62384&r=needscript
Try newer version:
https://bugs.php.net/fix.php?id=62384&r=oldversion
Not developer issue:
https://bugs.php.net/fix.php?id=62384&r=support
Expected behavior:
https://bugs.php.net/fix.php?id=62384&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=62384&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=62384&r=submittedtwice
register_globals:
https://bugs.php.net/fix.php?id=62384&r=globals
PHP 4 support discontinued:
https://bugs.php.net/fix.php?id=62384&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=62384&r=dst
IIS Stability:
https://bugs.php.net/fix.php?id=62384&r=isapi
Install GNU Sed:
https://bugs.php.net/fix.php?id=62384&r=gnused
Floating point limitations:
https://bugs.php.net/fix.php?id=62384&r=float
No Zend Extensions:
https://bugs.php.net/fix.php?id=62384&r=nozend
MySQL Configuration Error:
https://bugs.php.net/fix.php?id=62384&r=mysqlcfg
