Re: Re: Quickly verifying single word.
| From: | Usamah M. Ali | Date: | Thu, 05 Jun 2008 09:02:12 +0000 |
| Subject: | Re: Re: Quickly verifying single word. | ||
| References: | 1 2 3 4 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-275047@lists.php.net to get a copy of this message | ||
On Thu, Jun 5, 2008 at 9:19 AM, Per Jessen <per@computer.org> wrote:
> Shawn McKenzie wrote:
>
>>> if (preg_match('/[\s]*/', $string) === false) {
>>> echo 'No spaces!';
>>> }
>>>
>>> -Shawn
>>
>> Second one doesn't work for some reason. No time now to test, will
>> later.
>
> How about:
>
> if (preg_match('/\s/', $string) === false) {
> echo 'No spaces!';
> }
>
>
Won't work either. The problem lies in using the === comparison
operator. preg_match() returns 0 if no match is found, and FALSE if an
error occurred. So using === will always echo 'No spaces' whether
there were spaces or not, provided that no error has occurred.
if (!preg_match('/\s+/i', $string))
{
echo 'No spaces';
}
should suffice.
Regards,
Usamah