[SOLVED] Views Global: PHP, code not being executed for anonymous users

Hi there -

The code is within a field, Global: PHP, inside of a view. The code is a little bit convoluted, because of the way the view is setup. The view is reading from a list of images from a couple of different pages (I didn't design this, I'm just implementing PHP to randomize the image selection).

Again, when I'm logged in, the code works as expected (images are randomized and the file in /tmp is written to). However, when I'm not logged in, the code is never executed (the file in /tmp is never written to).

// set node id
$nid = $row->field_ss_slide;

// create an array to store node ids
$nids = array();

// populate node ids
$nids[] = $data->nid;

// open a temp file to test if code is being executed
$fh=fopen('/tmp/anon','a');
fwrite($fh, "works");
fclose($fh);

// get list of image files from the database
$result = db_query("SELECT field_ss_slide_fid FROM {field_data_field_ss_slide} WHERE entity_id = :nid", array(':nid' => $nid));

// loop through the list
foreach($result as $record){
	// grab uri of individual image
	$file = db_query("SELECT uri FROM {file_managed} WHERE fid= :fid", array(':fid' => $record->field_ss_slide_fid ));
	$x=0;
	
        // store uris
	foreach($file as $filename){
		$uri = $filename->uri;
		$uris[$nid][] = $filename->uri;
		
		$x++;
	}

}

$cnt = count($uris[$nid]);
$num = rand(0, $cnt-1);
$uri = $uris[$nid][$num];
$file = file_create_url($uri);

Thanks for any help that you can provide!