block_from_current_node

<?php

// implements hook_block_info
function block_from_current_node_block_info() {

 $blocks = array();
 
 $blocks['block_from_current_node'] = array(
   'info' => t('Block from current node'),
   'cache' => DRUPAL_NO_CACHE
 );

 return $blocks;
}


// implements hook_block_view
function block_from_current_node_block_view($block_name = '') {

  if($block_name == 'block_from_current_node'){
    return array(
      'subject' => t('Block from current node'),
      'content' => get_content_from_current_node()
    );
  }
}

function get_content_from_current_node(){
  //header('Content-type: text/plain; charset=utf-8');
  //var_dump(func_get_args());
  //drupal_exit();
  var_dump(menu_get_object());
  return $yourCustomHtml_or_page_array;
}