From: sta at netimage dot dk
Operating system: FreeBSD 7.1
PHP version: 5.2.11
PHP Bug Type: XML related
Bug description: libxml 2.7.3+ limits text nodes to 10MB
Description:
------------
Since version 2.7.3 libxml limits the maximum size of a single text node
to 10MB.
The limit can be removed with a new option, XML_PARSE_HUGE.
PHP has no way to specify this option to libxml.
I found the bug when making af SOAP-request where the reply contained a
20MB string.
SoapClient->__call() threw an exception: 'looks like we got no XML
document'
Using libxml_use_internal_errors(true) and libxml_get_errors() I could
narrow it down to a LibXMLError, code 5, 'Extra content at the end of the
document' - but the specified line and column was in the middle of a large
text node.
Using SoapClient->__getLastResponse() I saved the response to a file.
The xmllib program xmllint then revealed the cause:
> xmllint --noout soap_response.txt
soap_response.txt:111834: error: xmlSAX2Characters: huge text node: out of
memory
We need a way to specify the XML_PARSE_HUGE option to libxml - perhaps
something like a new function: libxml_parse_huge(true).
Reproduce code:
---------------
<?php
$xml = "<?xml version='1.0' encoding='utf-8' standalone='yes' ?><test>" .
str_repeat('A', 12000000) . "</test>";
file_put_contents('file.xml', $xml);
$sxe = simplexml_load_file('file.xml');
if ($sxe instanceof SimpleXMLElement) {
echo 'OK\n';
}
else {
var_dump($sxe);
}
Expected result:
----------------
OK
Actual result:
--------------
PHP Warning: simplexml_load_file(): file.xml:1: error: xmlSAX2Characters:
huge text node: out of memory in
/usr/dana/data/developers/holst/mobilmap/cron/xml.php on line 5
PHP Warning: simplexml_load_file():
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
in /usr/dana/data/developers/holst/mobilmap/cron/xml.php on line 5
PHP Warning: simplexml_load_file():
^ in
/usr/dana/data/developers/holst/mobilmap/cron/xml.php on line 5
bool(false)
--
Edit bug report at http://bugs.php.net/?id=49660&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=49660&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=49660&r=trysnapshot53
Try a snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=49660&r=trysnapshot60
Fixed in SVN:
http://bugs.php.net/fix.php?id=49660&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=49660&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=49660&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=49660&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=49660&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=49660&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=49660&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=49660&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=49660&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=49660&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=49660&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=49660&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=49660&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=49660&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=49660&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=49660&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=49660&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=49660&r=mysqlcfg
