Re: preg_match problem

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# znemeth@xxxxxxxxxxxxxx / 2007-01-19 15:25:38 +0100:
> Hi all,
> 
> I have a simple checking like
> 
> if (preg_match("/[\w\x2F]{6,}/",$a))
> 
> as I would like to allow all "word characters" as mentioned at
> http://hu2.php.net/manual/hu/reference.pcre.pattern.syntax.php
> plus the '/' character, and at least 6 characters.
> 
> But it throws
> 
> Warning: preg_match(): Unknown modifier ']'
> 
> and returns false for "abc/de/ggg" which string should be okay.
> If I omit the "\x2F", everything works fine but "/" characters are not
> allowed. Anyone knows what I'm doing wrong? Maybe "/" characters can not
> be put in patterns like this?

1. You're making your life harder with those double quotes.  \x2F is
   interpolated by PHP, before the PCRE library has a chance to see the
   string.
2. Use a different delimiter and you'll be able to use slash characters
   in the pattern freely.

   preg_match('~[\w/]{6,}~', $a);

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