Why is there no replacement of smileys when fetching from the database?

Question

PHP

There is a database from phpBb (table phpbb_smile)
(ID , CODE , URL)

From the file I output everything gut (smile)
But I can’t adapt the code from the database

spoiler

function smilies_pass($message)
{
  static $orig, $repl;

  if (!isset($orig))
  {
    global $db, $board_config;
    $orig = $repl = array();

    $sql = 'SELECT * FROM ' . SMILIES_TABLE;
    if( !$result = $db->sql_query($sql) )
    {
      message_die(GENERAL_ERROR, "Couldn't obtain smilies data", "", __LINE__, __FILE__, $sql);
    }
    $smilies = $db->sql_fetchrowset($result);

    if (count($smilies))
    {
      usort($smilies, 'smiley_sort');
    }

    for ($i = 0; $i < count($smilies); $i++)
    {
      $orig[] = "/(?<=.\W|\W.|^\W)" . preg_quote($smilies[$i]['code'], "/") . "(?=.\W|\W.|\W$)/";
      $repl[] = '<img src="'. $board_config['smilies_path'] . '/' . $smilies[$i]['smile_url'] . '" alt="' . $smilies[$i]['emoticon'] . '" border="0" />';
    }
  }

  if (count($orig))
  {
    $message = preg_replace($orig, $repl, ' ' . $message . ' ');
    $message = substr($message, 1, -1);
  }
  
  return $message;
}

sql_fetchrowset() sql_query()
didn't find any functions and just replaced it with
$sql = mysql_query("select * from phpbb_smile ");
$result = mysql_fetch_array;
Denver began to scold at usort () removed
Then an endless loop, with an endless page load