Drupal 7 Module Development

Chapter 4
After all these modifications, the second draft of our single_blog_block_view()
function is now complete and should look like this:
/**
* Implements hook_block_view().
*
* Second draft!
*
* @pararm $delta
* The name of the requested block.
*/
function single_blog_block_view($delta = '') {
// Create an empty block.
$block = array(
'subject' => '',
'content' => '',
);
// Check which block is being requested.
if ($delta == 'recent') {
// Set the block title.
$block['subject'] = t('Recent blog posts');
// Check if the user can access content.
if (user_access('access content')) {
// Retrieve the most recent nodes.
$result = single_blog_list(SINGLE_BLOG_LIST_COUNT);
// Create links for each blog entry.
$items = array();
foreach ($result as $node) {
$items[] = array(
'data' => array(
'#type' => 'link',
'#title' => $node->title,
'#href' => 'node/' . $node->nid,
),
'class' => array('node-' . $node->nid),
);
}
if (!empty($items)) {
// Theme the list of blog entries.
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