$usrname_escaped = mysql_real_escape_string ($user_name);
$query = sprintf ("SELECT COUNT(*) FROM %susers WHERE name LIKE '%s';",
$this->dbprefix, $usrname_escaped);
$res = mysql_fetch_array ($this->_execute_query ($query), MYSQL_NUM);
if ($res [0] == 1) {
$usrname_escaped = mysql_real_escape_string ($user_name);
$query = sprintf ("SELECT COUNT(*) FROM %susers WHERE name LIKE '%s';",
$this->dbprefix, $usrname_escaped);
$res = mysql_fetch_array ($this->_execute_query ($query), MYSQL_NUM);
if ($res [0] == 1) {