[thelist] How to tell if a regular expression is valid?
Jason Lustig
jasonlustig at adelphia.net
Wed Jul 14 17:58:55 CDT 2004
So I'm working on a PHP script in which the user inputs a the search and
replace sections of a regular expression in a form. For example, they
might input "\[b\](.*?)\[\/b\]" (without the quotes) as the search
section and "<b>\1</b>" as the replace part, and then the PHP script
puts them together in the preg_replace() function.
The only thing is, I want the script to check to see if the regular
expressions they put in are valid, i.e. if they will work. I've done
some searching on a regular expression to test if regular expressions
are valid or something like that. Any ideas?
Thanks!
Jason
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