Re: while loop
| From: | Yasuo Ohgaki | Date: | Tue, 10 Apr 2001 08:07:01 +0000 |
| Subject: | Re: while loop | ||
| References: | 1 2 3 4 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-47979@lists.php.net to get a copy of this message | ||
> > On Tue, 10 Apr 2001 15:16, Zeus wrote:
> > > > $query = mysql_query("some SQL here");
> > > > while ($row = mysql_fetch_array($query)) {
This line is the same as do
while( ($row = mysql_fetch_array($query)) == TRUE) {
Common coding style in C/C++ and PHP :)
Regards,
--
Yasuo Ohgaki
""Zeus"" <techzeus@pacific.net.sg> wrote in message
news:00b601c0c183$55647f60$4f7618d2@zeus...
> Isn't the '=' operator suppose to be used for assigning and not for
> evaluation.
>
> I thought '==' should be used in this context?
>
> Zeus
> ----- Original Message -----
> From: David Robley <huntsman@www.nisu.flinders.edu.au>
> To: Zeus <techzeus@pacific.net.sg>; Michael Hall <lists@mulga.com.au>; Jacky
> <jacky@activelifestyle.com>
> Cc: <php-general@lists.php.net>
> Sent: Tuesday, 10 April, 2001 1:53 PM
> Subject: Re: [PHP] while loop
>
>
> > On Tue, 10 Apr 2001 15:16, Zeus wrote:
> > > > $query = mysql_query("some SQL here");
> > > > while ($row = mysql_fetch_array($query)) {
> > > > do stuff;
> > > > }
> > >
> > > Isn't this suppose to be an infinite loop?
> > >
> > > while ($row is assigned to mysql_fetch_array($query)) {
> > > do stuffs;
> > > }
> > >
> > > someone correct me if I'm wrong?
> > >
> > > Zeus
> >
> > Consider yourself corrected :-) mysql_fetch-array returns an array
> > corresponding to the fetched row, or _false if there are no more rows_
> >
> > So as soon as there are no more rows, $row = mysql_fetch_array($query)
> > evaluates to false and the while exits.
> >
> > --
> > David Robley | WEBMASTER & Mail List Admin
> > RESEARCH CENTRE FOR INJURY STUDIES |
> > http://www.nisu.flinders.edu.au/
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> > http://auseinet.flinders.edu.au/
> > Flinders University, ADELAIDE, SOUTH AUSTRALIA
>
>
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