ID: 15247
User updated by: [EMAIL PROTECTED]
Old Summary: preg_match('/(.|\n)*/',$a,$b) crashes
Reported By: [EMAIL PROTECTED]
Old Status: Feedback
Status: Open
Bug Type: Reproducible crash
Operating System: Win98
PHP Version: 4.0.6
New Comment:
Sorry, here's a script that crashes. If you change "$i<127" to
"$i<126" it no longer crashes. I hope this is useful!
As a postscript, I tried upgrading to 4.1.1, and couldn't find any
configuration that worked with Apache 1.3.20 or 1.3.22. Also, the web
server that hosts us still uses 4.0.6
<?php
$read = '&test(blah){';
for($i=0;$i<127;$i++)
{
$read .= md5('hoogie');
}
preg_match("/(&test\([^\)]+\)[\n\r\t]*\{)((?:.|\n|\r|\t)*)/",$read,$test);
var_dump($test);
?>
Previous Comments:
------------------------------------------------------------------------
[2002-01-27 15:10:31] [EMAIL PROTECTED]
I think this is a limit of the preg functions, it would really help if
you could supply a script that reproduces it, and stands on it's own.
Derick
------------------------------------------------------------------------
[2002-01-27 15:08:02] [EMAIL PROTECTED]
Do you have any idea of the size of $a? 1MB? 10MB? 100MB? 1GB? 1TB???
:)
Does it help if you leave out the third argument (currently $b)?
Also, can you try 4.1.1?
------------------------------------------------------------------------
[2002-01-27 14:59:36] [EMAIL PROTECTED]
if the size of $a is very large, php crashes. I replaced (.|\n)* with
the better [\w\W]* and it stopped crashing. I'm not positive what the
size limit is, the script that produced the crash is quite large and
complex.
print_r(get_loaded_extensions()) produces
Array ( [0] => standard [1] => bcmath [2] => Calendar [3] => com [4] =>
variant [5] => ftp [6] => mysql [7] => odbc [8] => pcre [9] => session
[10] => xml [11] => wddx [12] => gd [13] => pdf [14] => pgsql [15] =>
zlib [16] => Zend Optimizer [17] => apache )
I'm using Apache 1.3.20
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Edit this bug report at http://bugs.php.net/?id=15247&edit=1
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