Default theme implementation to display a block.
Available variables:
Helper variables:
template_process()
<?php
/**
 * @file
 * Default theme implementation to display a block.
 *
 * Available variables:
 * - $block->subject: Block title.
 * - $content: Block content.
 * - $block->module: Module that generated the block.
 * - $block->delta: An ID for the block, unique within each module.
 * - $block->region: The block region embedding the current block.
 * - $attributes: An instance of Attributes class that can be manipulated as an
 *    array and printed as a string.
 *    It includes the 'class' information, which includes:
 *   - block: The current template type, i.e., "theming hook".
 *   - block-[module]: The module generating the block. For example, the user
 *     module is responsible for handling the default user navigation block. In
 *     that case the class would be 'block-user'.
 * - $title_prefix (array): An array containing additional output populated by
 *   modules, intended to be displayed in front of the main title tag that
 *   appears in the template.
 * - $title_suffix (array): An array containing additional output populated by
 *   modules, intended to be displayed after the main title tag that appears in
 *   the template.
 *
 * Helper variables:
 * - $block_zebra: Outputs 'odd' and 'even' dependent on each block region.
 * - $zebra: Same output as $block_zebra but independent of any block region.
 * - $block_id: Counter dependent on each block region.
 * - $id: Same output as $block_id but independent of any block region.
 * - $is_front: Flags true when presented in the front page.
 * - $logged_in: Flags true when the current user is a logged-in member.
 * - $is_admin: Flags true when the current user is an administrator.
 * - $block_html_id: A valid HTML ID and guaranteed unique.
 *
 * @see template_preprocess()
 * @see template_preprocess_block()
 * @see template_process()
 *
 * @ingroup themeable
 */
?>
<div id="<?php
print $block_html_id;
?>" <?php
print $attributes;
?>>
  <?php
print render($title_prefix);
if ($block->subject) {
  ?>
  <h2<?php
  print $title_attributes;
  ?>><?php
  print $block->subject;
  ?></h2>
<?php
}
?>
  <?php
print render($title_suffix);
?>
  <div<?php
print $content_attributes;
?>>
    <?php
print $content;
?>
  </div>
</div>