function &select($sql)
{
if ($this->_rw_lnk) {
$db_lnk =& $this->_rw_lnk;
} else {
if ($this->_ro_lnk) {
$db_lnk =& $this->_ro_lnk;
} else {
$db_lnk =& $this->_ro_conn();
}
}
if (cachemgr::check_current_co_depth() > 0 && preg_match('/FROM\\s+([]0-9a-z_:"`.@[-]*)/is', $sql, $matchs)) {
if (isset($matchs[1])) {
$table = strtoupper(trim(str_replace(array('`', '"', '\''), array('', '', ''), $matchs[1])));
if (!cachemgr::check_current_co_objects_exists('DB', $table)) {
cachemgr::check_expries('DB', $table);
}
}
}
$rs = $this->exec($sql, false, $db_lnk);
$data = array();
while ($row = mysql_fetch_assoc($rs['rs'])) {
$data[] = $row;
}
mysql_free_result($rs['rs']);
return $data;
}
public function check_expries($key, $force = false)
{
if ($force || cachemgr::check_current_co_depth() > 0) {
if (!isset($this->__checkVaryArr[$key])) {
$this->__checkVaryArr[$key] = strtoupper(md5($this->app_id . $key));
}
if (!cachemgr::check_current_co_objects_exists('CONF', $this->__checkVaryArr[$key])) {
cachemgr::check_expries('CONF', $this->__checkVaryArr[$key]);
}
}
}
