PHP4TS crash with preg_match_all

[musicmaster]

I get PHP4TS.dll crashes when I do a preg_match_all. The problem seems to occur when my data string becomes too long. As far as I can see the limit is 2163. As I need to match strings that are longer this is a serious problem to me.

A sample PHP program that gets this error is:

<?php
$data=" <tr ";
for($i=0;$i<217;$i++)
$data .="xxxxxxxxxx";
$matcher = "/<tr (((?!<\/table).)*)/i"; // up to end of link table
echo strlen($data);
preg_match_all($matcher,$data,$matches);
return;
?>

The problem occurs both when the lookahead is never finished (as in the example) and when the loohahead finishes too late so that the matching string become longer as 2162.

I am working in Windows ME with Apache, MySQL and the newest version of PHP. Yesterday I updated my PHP from 4.2 but the problem became only worse.

Is there a way to work around this problem?

Thanks,

Wim

[xblue]

yeah, your code fails at a similar string length on my system (win32, too). I think it is caused by the lookahead being executed at every position in the string, so it might be worth a try doing a lookahead for '/table' only after a opening angular bracket is detected, like

$matcher = "#<tr [^{<](<(?!/table)[<])*#i";}

this is working fine for me on strings that are twice as long as your example even if the string contains some tags, e.g.

for($i=0;$i<250;$i++)
$data .= "x<b>x</b>xxxx<i>x</i>xxx";