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Posted by Tom on 02/16/07 18:08
On Fri, 16 Feb 2007 11:55:02 +0000, raj wrote...
>
>Hi,
>
>I have to repost this to restate the question. No disrespect to the original
>reply.
>
>Please can someone help regarding providing a regular expression for entering
>a set of characters with letters, numbers, periods (.), hyphens (-), or
>underscores (_) only.
>
>I need to do this using ereg
>
>I've got as far as this but it doesn't quite work:
>
>$pattern="^([a-z0-9.-_]{0,30})$";
>if(ereg($pattern,$_SESSION['id']))
>...
>
>
>Thank you in advance.
>
>Kind regards,
>
>Raj (newbie)
>
Normally with "preg" I need to put the hyphen last, otherwise it may confuse a
literal hyphen with the special character. Such as the hyphens you're using to
specify the range of letters and numbers. The same may apply to the function
you're trying to use.
Tom
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