Unsupported operand types

Mon Jun 20 07:28:16 PDT 2005

I really need some help.  I posted this late friday
afternoon, however I am going to repost it in case
anyone who might be able to help me missed it.

I am trying to use the queryByAttributes method of
the LayerObj class of PHP/Mapscript and I am doing
something wrong, because I get the following error:

Fatal error: Unsupported operand types in
C:\ms4w\apps\test\htdocs\LA.phtml on line 12

I am running in Windows XP professional with:

ms4w 1.1

I also get the same error in MacOS X with a custom
compiled version of MapSever.

The Map File is contains:
MAP
     NAME LA
     IMAGETYPE PNG
     SIZE 600 600
     IMAGECOLOR 240 240 240
     SHAPEPATH "../data"
     FONTSET ../etc/fonts.txt
     EXTENT -94.043147 28.925011 -88.817017 33.019457
     UNITS METERS
     WEB
         IMAGEPATH "/ms4w/tmp/ms_tmp/"
         IMAGEURL "/ms_tmp/"
     END

	LEGEND
		STATUS EMBED
		POSITION UR
	END

	SCALEBAR
		TRANSPARENT ON
		BACKGROUNDCOLOR 0 0 0
		STATUS EMBED
		POSITION LR
		STYLE 1
	END

		LAYER
			NAME "LA zip code boundaries"
			TYPE POLYGON
			STATUS DEFAULT
			DATA "zt22_d00"
			LABELITEM "ZCTA"
			CLASS
				COLOR 254 0 0
					LABEL
						COLOR 60 60 60
						SHADOWCOLOR 218 218 218
						SHADOWSIZE 1 1
						TYPE TRUETYPE
						FONT fritqat
						SIZE 8
						ANTIALIAS TRUE
						POSITION CL
						PARTIALS FALSE
						MINDISTANCE 5
						BUFFER 4
					END
				OUTLINECOLOR 60 60 60
				SYMBOL 0
			END
			TEMPLATE "x"
		END

		LAYER
			NAME "credits"
			STATUS DEFAULT
			TRANSFORM FALSE
			TYPE ANNOTATION
			FEATURE
				POINTS
					10 680
				END
				TEXT 'Made with Mapserver.'
			END
			CLASS
				LABEL
					TYPE BITMAP
					POSITION CR
					COLOR 0 0 0
				END
			END
		END

END

My  .phtml file contains:
<?php
if (!extension_loaded("MapScript"))
{
     dl("php_mapscript_44.dll");
}
if (!extension_loaded("dbase"))
{
     dl("php_dbase.dll");
}

$map_file="./LA.map";
$map = ms_newMapObj($map_file);
//$image=$map->draw();
//$image_url=$image->saveWebImage();

$oZipLayer = $map->getLayerByName("LA zip code
boundaries");

//Do query
$sZip = '12603';
$sAttrName = 'ZCTA';
$qresult =
@$oZipLayer->queryByAttributes($sAttrName,$sZip,MS_MULTIPLE);
$image = $map->drawQuery();
$image_url = $image->saveWebImage();
$error = ms_GetErrorObj();
while($error && $error->code != MS_NOERR)
{
	printf("Error in %s: %s \n", $error-routine,
$error->messaage);
	$error = $error->next();
}
?>
  <HTML>
  <HEAD>
  <TITLE>LA Zip Codes</TITLE>
  </HEAD>
  <BODY>
<img SRC="<?php echo $image_url?>">
  <p>This is an unprojected map of the 5 digit zip code
boundries for the state of Louisianna,
  from the <a
href="http://www.census.gov/geo/www/cob/z32000.html">
US Census Bureau</a>.</p>
  <p>To find the categories for the legend, I used the
<code>ogrinfo</code> utility twice.
  <code>ogrinfo -a -summary zt22_d00.shp</code> let me
see what fields were available, and
  <code>ogrinfo -a zt22_d00.shp|grep SYMBOL|sort
-u</code> told me what all of the unique values were
so that
  I could build my <code>CLASS</code> definitions in
<code>LA.map</code>.
  </p>
</BODY>
</html>
<?php
print_r($oZipLayer);
print_r($qresult);
if ($oZipLayer->getNumResults() > 0)
	echo $oZipLayer->getNumResults()." zips found.";
else
     echo "No zips found."

?>

I would appreciate any help or suggestions anyone has
to offer.

Thanks,

Matt