> I tried adding a period to the end but a string will a period still
> returns
> false
>
> function is_alphanumeric($string)
> {
> return (preg_match("/^[A-Za-z0-9.]+$/i", $string));
> }
No it doesn't. It's not allowing spaces, though... Is that the problem?
---John W. Holmes...
Amazon W
It's using the case-insensitive switch.
Dan Joseph wrote:
Also, if you want upper case letters, make sure you add A-Z:
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PHP General Mailin
2:42 PM
To: Php-General (E-mail)
Subject: RE: [PHP] Allowing punctuation marks in regular expressions
Hi,
> return (preg_match("/^[a-z0-9]+$/i", $string));
That a-z0-9 is where you can do it. Just add ! or . or ? to the
end:
a-z0-9!?.
Also, if you want u
Hi,
> return (preg_match("/^[a-z0-9]+$/i", $string));
That a-z0-9 is where you can do it. Just add ! or . or ? to the end:
a-z0-9!?.
Also, if you want upper case letters, make sure you add A-Z:
A-Za-z0-9!?.
-Dan Joseph
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