[mapserver-users] PHP MapScript inserting extra parameters into .map file

[Ian]

I'm using PHP MapScript to change layers' DATA parameters as the user
selects options in an OpenLayers 2.7/MapServer 5.2 WMS setting. This
is working fine however I just noticed that extra undefined/unwanted
information is being appended to the map file when my script runs.
Specifically:

STYLE
     ANGLE 360
     OPACITY 100
     SYMBOL 0
END

is appended to each CLASS so what was originally:

CLASS
    EXPRESSION ([pixel] >= 155 AND [pixel] < 164)
    COLOR 28 28 28
  END

becomes:

CLASS
      EXPRESSION ([pixel] >= 155 AND [pixel] < 164)
      STYLE
        ANGLE 360
        COLOR 28 28 28
        OPACITY 100
        SYMBOL 0
      END
    END

Is there a way to prevent MapScript from doing this? My script is:

<?php

// Grab POST parameters
$mapFile = $_POST['mapFile'];
$layerString = $_POST['layers'];

// Separate layers on comma
$layers = explode(",", $layerString);

// Load MapServer .map file
$map = ms_newMapObj($mapFile);

// Update map file with each layer
for ($i = 0; $i < sizeof($layers); ++$i) {
  $layerPrefix = explode("_", $layers[$i]);
  $layer = $map->getLayerByName($layerPrefix[0]);
  // Change DATA parameter for layer
  $layer->set("data", 'path/to/data/' . $layers[$i]);
}

// Finished editing, save .map file
$map->save($mapFile);
?>


Thank you,
Ian