RE: [PHP] If the first four characters are "0000", then do {}
| From: | Daevid Vincent | Date: | Tue, 26 Jan 2010 04:12:43 +0000 |
| Subject: | RE: [PHP] If the first four characters are "0000", then do {} | ||
| References: | 1 2 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-301456@lists.php.net to get a copy of this message | ||
> -----Original Message-----
> From: Paul M Foster [mailto:paulf@quillandmouse.com]
> Sent: Monday, January 25, 2010 8:05 PM
> To: php-general@lists.php.net
> Subject: Re: [PHP] If the first four characters are "0000", then do {}
>
> On Mon, Jan 25, 2010 at 09:36:50PM -0500, John Taylor-Johnston wrote:
>
> > I am reading the manual:
> > http://ca.php.net/manual/en/ref.strings.php
> >
> > $mydata->restored = "0000-00-00";
> >
> > How do I express this? If the first four characters are
> "0000", then do {}
> >
> > What I am looking for is in strpos(), no?
> >
> > if (????????????)
> > {
> > }
>
> >From what I understand, strpos() faster than a lot of other similar
> string functions and much faster than regexps. You could do:
>
> if (strpos($mydata->restored, '0000') === 0) {
> do_stuff();
> }
Ah. Clever use of the "== 0" (tripple equals not necessary).
The OP needs to know if it's the first 4 or not and so position 0 would be
the start. Very nice.
Now, if his data is always of the format XXXX-XX-XX as it was illustrated,
then this will also work
if (strpos($mydata->restored, '0000-') !== false) { do stuff; }
(note the hyphen) and you should check the === false