/**
* 保存慢查询日志
*
* @param float $start_time 由 `$this->_start_slow_query()` 返回的值
*/
protected function _record_slow_query($start_time)
{
if (!$start_time) {
return;
}
$end_time = microtime(1);
$use_time = 1000 * ($end_time - $start_time);
if (($min_time = Database::_get_slow_query_setting_time()) && $use_time > $min_time) {
// 记录慢查询
Database::$slow_querys[] = array($start_time, $use_time, $this->driver->last_query());
}
}
/**
* 最后查询的SQL语句
*
* @return string
*/
public function last_query()
{
return $this->driver->last_query();
}