[pLog-svn] r6050 - plog/trunk/class/dao

[Mark Wu]

If there is nothing match to the pattern, it will return empty array to the
$res array.

See this example:

<?php
$subject = "abcdef";
$pattern = '/^def/';
preg_match($pattern, $subject, $matches, PREG_OFFSET_CAPTURE, 3);
print_r($matches);
?>

The $match will be

Array
(
)

Mark 

> -----Original Message-----
> From: plog-svn-bounces at devel.lifetype.net 
> [mailto:plog-svn-bounces at devel.lifetype.net] On Behalf Of Jon Daley
> Sent: Saturday, November 17, 2007 10:03 PM
> To: LifeType Developer List
> Subject: Re: [pLog-svn] r6050 - plog/trunk/class/dao
> 
>  	What does it mean for $res to be empty (ie. when does 
> that happen)?  I don't see any references to it being empty 
> in the php documentation.  It does seem like we should be 
> checking the return value of preg_match though.
> 
> On Sat, 17 Nov 2007, mark at devel.lifetype.net wrote:
> 
> > Author: mark
> > Date: 2007-11-17 02:33:02 -0500 (Sat, 17 Nov 2007) New 
> Revision: 6050
> >
> > Modified:
> >   plog/trunk/class/dao/trackbackclient.class.php
> > Log:
> > Fixed a bug in trackback client. Weird, why there is no 
> people complain about this bug when thet use the trackbackUrls fields.
> >
> > Modified: plog/trunk/class/dao/trackbackclient.class.php
> > ===================================================================
> > --- plog/trunk/class/dao/trackbackclient.class.php	
> 2007-11-17 06:54:19 UTC (rev 6049)
> > +++ plog/trunk/class/dao/trackbackclient.class.php	
> 2007-11-17 07:33:02 UTC (rev 6050)
> > @@ -122,7 +122,8 @@
> >         		return false;
> >
> >         	preg_match( "/.*<error>(.*)<\/error>.*/", 
> $s->results, $res );
> > -        	if( $res[1] == 1 )
> > +
> > +        	if( empty($res) || $res[1] == 1 )
> >         		return false;
> >         	else
> >         		return true;
> >
> > _______________________________________________
> > pLog-svn mailing list
> > pLog-svn at devel.lifetype.net
> > http://limedaley.com/mailman/listinfo/plog-svn
> >
> 
> --
> Jon Daley
> http://jon.limedaley.com/
> 
> Sometimes being smart is a handicap.
> Smart people are often too smart to take advice from others.
> -- Al Ries
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