Help with Error: POSIX collating elements are not supported

Doug Heavrin-Brown doughb at
Fri Dec 9 16:27:44 EST 2011


I hope this is the right place to get help fixing an error when using
Markdown on our servers.

I'm not sure what our webmasters have done, but a recent change (perhaps to
PHP?) made our Markdown text disappear from the page because of an error.

PHP Warning: preg_replace_callback() [<a
Compilation failed: POSIX collating elements are not supported at offset 116
in /[PATH]/markdown.php on line 974

Searching for help turned out to be mostly fruitless, except for a page
pointing to rows 977-981, where one poster says commenting out those lines
stops the error.

That is correct, but it also stops unordered lists from being formatted.
While we can live with that for now (because Markdown has worked so well so
far) that won't do in the long run.

There were other pages that mention PRCE, but that seemed to be with a
different version of PHP (our servers are running 5.2.9 -- and we are not
able to change that).

We have not found anyone who has the proper skills and is also able to help
us with this problem.

Has anyone encountered this before and is there a way to fix it?




Douglas Heavrin-Brown
Information and Technology Services (ITS)
University of Michigan
ASB 3028-14
1009 Greene Street
Ann Arbor MI 48104-1432
(734) 647-8181

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