[PHP] [newbie] Can I use regular expressions?
Hi there! I want to check if given username consists only of letters of English alphabet, numbers, or "_". I can go through the string and check every character. Wouldn't it be simpler to use regular expressions? How would I do it? These usernames are OK: _john_, 0123bla, foo These are wrong: x#y, tboo, 100% Thanks for your advice. zbynek -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] [newbie] Can I use regular expressions?
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 okbr";
else
echo "'$Username' contains invalid chars"
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"use the source, luke." (obi-wan gnuobi)
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