Internal Server Error on queryByShape

[Richard Barahona]

Hi list,
I don't if the function queryByShape has a problem or i am doing something
wrong, but the result is an Internal Server Error (php crashes). He is the
piece of my code (php-mapscript):

$oshape = ms_newShapeObj(MS_SHAPE_POLYGON);
$oline = ms_newLineObj();

for($i=0; $i < sizeof($arXCoords)-1; $i++)
{
 $opoint = ms_newPointObj();
 $opoint->setXY($arXCoords[$i],$arYCoords[$i]);
 $oline->add($opoint);
}

$oshape->add($oline);
$oshape->set('classindex',1);
$oshape->set('text','99');

$olayer = $_SESSION['oMap']->getlayerbyname("awp");

$brc = $olayer->querybyshape($oshape);

The shape object extent are set to -1, but the attribute numline is set to
1. Strange.

Any solution? Thanks for your help.