Re: regex usage
| From: | Nirmalya Lahiri | Date: | Sun, 17 Feb 2008 17:23:05 +0000 |
| Subject: | Re: regex usage | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-269436@lists.php.net to get a copy of this message | ||
--- Valedol <Valedol@goon.ru> wrote:
> Is there a mothod to check string`s length with regex or the only
> way is
> using strlen?
>
> I want string consisting of 4 digits
> and check string with this code:
>
> if (preg_match("/\d{4}/",$_POST[id]))
> { echo $_POST[id]; }
>
> but preg_match returns true when string consists of 4 or more
> digits
> --
To check only 4 digit, you have to specify max lengh of the string in
length specifier..
if (preg_match("/\d{4,4}/",$_POST[id]))
{ echo $_POST[id]; }
---
Nirmalya Lahiri
[+91-9433113536]
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