Description:
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in my functions.php (http://wiki.dgsnet.dk/functions.phps) i got a class called user with a function called in_group(). This function calls a global function called isint();, this function uses preg_match. If the in_group() function is called from withith the global makeoutput function or from a function called from without the makeoutput function. the the call in in_group() to isint() will cause the apache child to crash. i cannot get a gdb file, since it's the child and not the parant server which is crashing. However the log states clearly that it returns a segmentation fault. 

I might need to note that in_group is being called several times before makeoutput() is started and that works fine.

Reproduce code:
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http://wiki.dgsnet.dk/functions.phps

Expected result:
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that apache/php didn't crash.

Actual result:
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see description.