Dear all,
In the Zend Framework we have written a filter to filter anything but alpha
an numeric characters from a string. The regular expression for this filter
looks like so:
$result = preg_replace('/[^\p{L}\p{N}\s]/u', '', '!!testing123!!');
Apperently, on some systems like RHEL however, this regular expression seems
to fail. The reason that it is failing for you appears to be that your PCRE
does not have UTF-8 support compiled in? This is likely the result of the
particular distribution not having used the --enable-utf8 option.
What this means to us is that the class should become aware of whether such
support is available, and act accordingly.
My question to you guys is, how would such a check for support best be done?
Perhaps detect the error condition, which would only occur in the event that
the system does not have utf-8 support? But how (preferably without going
down the dirty path .... )?
Best regards,
Andries Seutens
http://andries.systray.be
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