ID: 33084
User updated by: cs at scanner dot de
Reported By: cs at scanner dot de
-Status: Feedback
+Status: Open
Bug Type: PCRE related
Operating System: linux suse
PHP Version: 4.3.11
New Comment:
$iterations = 46296; // 46297 --> error
$ricxml = array();
$ricxml[] = '<PRODAT>';
for($i=0;$i<$iterations;$i++){
/* this is just garbage to produce really big strings !!!! */
$ricxml[] =
'<MessageVersion>2</MessageVersion><GeneratingDateTime>2005-05-20T09:47:23</GeneratingDateTime><MessageFunction>4</MessageFunction><Product
xsi:type="ProductTypeChange"><Activity>3</Activity><CPC>4021312017957</CPC>';
}
$ricxml[] = '</PRODAT>';
$ricxml[] = '<PRODAT>';
for($i=0;$i<10000;$i++){
/* this is just garbage to produce really big strings !!!! */
$ricxml[] = '<Product
xsi:type="ProductTypeChange"><Activity>3</Activity><CPC>4021312154638</CPC><ExpirationDate>2005-05-18</ExpirationDate></Product>';
}
$ricxml[] = '</PRODAT>';
$ricxml = implode("\r\n",$ricxml);
echo 'Size: '.strlen($ricxml)."\n";
preg_match_all('#<PRODAT>(.+)</PRODAT>#smiU',$ricxml,$envelopes);
echo 'Strlen of serialize: '.strlen(serialize($envelopes))."\n";
/* if the $ricxml string is greater the 22,7MB the result of Strlen
from serialize is 26 (the $envelopes is empty otherwise the real strlen
will be returned */
/* if you remove the modifier U and $iteration is greater than 46300 in
the pattern then preg_match_all will find ONE occurenc */
Previous Comments:
------------------------------------------------------------------------
[2005-05-20 16:52:59] [EMAIL PROTECTED]
Thank you for this bug report. To properly diagnose the problem, we
need a short but complete example script to be able to reproduce
this bug ourselves.
A proper reproducing script starts with <?php and ends with ?>,
is max. 10-20 lines long and does not require any external
resources such as databases, etc.
If possible, make the script source available online and provide
an URL to it here. Try to avoid embedding huge scripts into the report.
------------------------------------------------------------------------
[2005-05-20 16:48:15] cs at scanner dot de
Description:
------------
preg_match_all('#<envelope>(.+)</envelope>#smiU',$ricxml,&$envelopes);
i have a xml file around 40,5 MB huge. when i parse the text $ricxml
through the preg_match_all fnc then the results will be empty arrays
instead of arrays filled with the text.
that means if i do not use the U modifier then p_m_a will find the
first match. with the U modifier p_m_a will not find any matches.
for command line:
Configure Command => './configure' '--with-mysql=/usr/mysql'
'--with-zlib' '--enable-sysvshm=yes' '
--enable-sysvsem=yes' '--enable-shmop=shared'
'--with-config-file-path=/etc' '--enable-track-vars=ye
s' '--enable-url-includes' '--with-gd=/usr/local'
'--with-jpeg-dir=/usr/local/lib' '--with-pdflib=/u
sr/local' '--with-zlib-dir=/usr/lib' '--enable-ftp' '--with-pear'
'--with-openssl=/usr/local/openssl
' '--enable-calendar' '--with-crack=/usr/local'
'--with-curl=/usr/local' '--enable-dbase' '--enable-
dio' '--enable-exif' '--with-mcrypt=/usr/local'
'--with-mhash=/usr/local' '--enable-sockets' '--enab
le-wddx' '--enable-xml' '--disable-magic-quotes' '--enable-pcntl'
'--with-mssql=/usr/local/freetds'
Expected result:
----------------
array(4) {
[0]=>
array(1) {
[0]=>
string(41523804) "<Envelope>
....
Actual result:
--------------
without the U modifier
preg_match_all('#<envelope>(.+)</envelope>#smi',$ricxml,&$envelopes);
-- size of xml file: 41524017 Bytes
array(2) {
[0]=>
array(0) {
}
[1]=>
array(0) {
}
}
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=33084&edit=1
