Re: [newbie] Can I use regular expressions?
| From: | Christian Reiniger | Date: | Sun, 11 Feb 2001 12:16:47 +0000 |
| Subject: | Re: [newbie] Can I use regular expressions? | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-39117@lists.php.net to get a copy of this message | ||
On Sunday 11 February 2001 13:09, zbynek wrote:
> I want to check if given username consists only of letters of English
> alphabet, numbers, or "_".
> Wouldn't it be simpler to use regular expressions? How would I do it?
if (preg_match ('/^\w+$/', $Username))
echo "'$Username' is ok<br>";
else
echo "'$Username' contains invalid chars"
--
Christian Reiniger
LGDC Webmaster (http://sunsite.dk/lgdc/)
"use the source, luke." (obi-wan gnuobi)