use is_null() check it 2009/8/26 David Stoltz <Dstoltz@xxxxxxx>: > Paul, > > This all started because when I try this: > > <?php echo $rs->Fields(22);?> > > It work fine, as long as there is a non-null value there, otherwise it > produces an error. > > Also, I'm working with a Microsoft SQL 2000 database, not MySQL....not > sure if that matters.... > > But "echo $rs->Fields(22)" works perfectly for dumping values out of my > $rs recordset...that is, unless the value is NULL is the database - then > I get: > > Catchable fatal error: Object of class variant could not be converted to > string in D:\Inetpub\wwwroot\evaluations\lookup2.php on line 176 > > > -----Original Message----- > From: Paul M Foster [mailto:paulf@xxxxxxxxxxxxxxxxx] > Sent: Tuesday, August 25, 2009 4:39 PM > To: php-general@xxxxxxxxxxxxx > Subject: Re: How to output a NULL field? > > On Tue, Aug 25, 2009 at 02:00:04PM -0400, David Stoltz wrote: > >> $rs->Fields(22) equals a NULL in the database >> >> My Code: >> >> if(empty($rs->Fields(22))){ >> $q4 = ""; >> }else{ >> $q4 = $rs->Fields(22); >> } >> >> Produces this error: >> Fatal error: Can't use method return value in write context in >> D:\Inetpub\wwwroot\evaluations\lookup2.php on line 32 >> >> Line 32 is the "if" line... >> >> If I switch the code to (using is_null): >> if(is_null($rs->Fields(22))){ >> $q4 = ""; >> }else{ >> $q4 = $rs->Fields(22); >> } >> >> It produces this error: >> Catchable fatal error: Object of class variant could not be converted > to >> string in D:\Inetpub\wwwroot\evaluations\lookup2.php on line 196 >> >> Line 196 is: <?php echo $q4;?> >> >> What am I doing wrong? >> >> Thanks! > > Just a thought... do you really mean $rs->Fields(22) or do you mean > $rs->Fields[22]? The former is a function call and the latter is an > array variable. > > Paul > > -- > Paul M. Foster > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
