Hi i got error

recoverable fatal error: Object of class mysqli_result could not be converted to string in F:\wamp\www\vijaishopping\themes\garland\block.tpl.php on line 10.


Hi i tried custom module, it through the error ,

What i do now,

my snippet below

<?php

function alphabeticalsearch_block($op = 'list', $delta = 0, $edit = array()){

     if($op == "list") {
            $block = array();
          $block[0]["info"] = t('Alphabetical Search');
        return $block;
      }
  elseif($op == 'view'){
    $alphabetical_search_result = db_query("SELECT node.nid AS nid, node.title AS node_title,   node_revisions.body AS node_revisions_body,
              node_revisions.format AS node_revisions_format FROM node node LEFT JOIN node_revisions node_revisions
              ON node.vid =    node_revisions.vid where node.title like '%a'");   
       
     $block['subject'] = 'Click to send request';
     $block['content'] = $alphabetical_search_result;
    return $block;
  }

}