How to check whether a region contains block for current page?

At some cases, we might need to add some div structures to a group of regions, at that case, we need to check whether region has any block or not to place the div structure.

 

Ex:

Code in page.tpl.php

 

<?php if(region_empty($testRegion1)) { 

?>

<div id="testId">

<?php

print $testRegion1;

 print $testRegion2;

 print $testRegion3; 

 print $testRegion4;

?>

</div>

<?php 

}

?>

The function region_empty() would return 1 if it has a block to show.

<?php

function region_empty($test_region) {

  $test_empty = 1;

  $result = db_query_range('SELECT n.pages, n.visibility FROM {blocks} n WHERE n.region="%s" AND n.theme="%s"', $test_region, $GLOBALS['theme'], 0, 10);

  if (count($result) > 0) {

    while ($node = db_fetch_object($result))

    {

 

      if ($node->visibility < 2) {

        $path = drupal_get_path_alias($_GET['q']);

 

        // Compare with the internal and path alias (if any).

        $page_match = drupal_match_path($path, $node->pages);

        if ($path != $_GET['q']) {

          $page_match = $page_match || drupal_match_path($_GET['q'], $node->pages);

        }

        $page_match = !($node->visibility xor $page_match);

      } else {

        $page_match = drupal_eval($block->pages);

      }

 

      if ($page_match)

        $test_empty = 0;

    }

  }

  return $test_empty;

}

?>