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Posted by Stephen Kay on 01/02/07 05:03
I'm having a problem where I changed hosts, went from php 4.1.2 to php
4.4.4, and now preg_replace_callback() is segfaulting when I pass it html
that is longer than 2732 bytes. This code has worked for a long time on a
different server.
Basically, I am reading an html page template into a variable with fread().
I then am doing this, which is code taken from a user example on the eval()
php manual page, which I have used successfully for quite awhile:
What it does is evaluate mixed html and php code, and output to browser. You
call it like:
eval_mixed($string);
function eval_mixed_helper($arr){
return ("echo stripslashes(\"".addslashes($arr[1])."\");");
}
function eval_mixed($string){
$string = "<? ?>".$string."<? ?>";
$string = preg_replace("/<\?=\s+(.*?)\s+\?>/", "<? echo $1; ?>",
$string);
$string = str_replace('?>', '', str_replace( array('<?php', '<?'),
'', preg_replace_callback( "/\?>((.|\n)*?)<\?(php)?/", "eval_mixed_helper",
$string) ) );
return eval($string);
}
If the template that I read into $string is 2732 or less bytes, it works
like it always did. If it is 2733 or greater bytes, it segment faults.
I found this report in the bug database, but it's really old. It sounds like
the same thing, though:
http://bugs.php.net/bug.php?id=25754
Bug #25754 preg_replace() and preg_replace_callback() crash with long
matches
Anybody know anything about this?
Again, it worked fine on the older php on a different server.
I don't really know what to do to proceed with this, it's a bit out of my
league.
Any advice would be greatly appreciated!
--
Stephen Kay
Karma-Lab sk@karma-lab.NOSPAM.com
^^^^^^^
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