第一步，获取当前的数据表

$dbname = $empire->gettotal("select database() as total;");

第二步，获取表的行数，就是记录数：

$tbname=$dbtbpre.'ecms_news';
$dbname = $empire->gettotal("select database() as total;");
echo $num = $empire->gettotal("select TABLE_ROWS as total FROM information_schema.tables where TABLE_SCHEMA='$dbname' and TABLE_NAME='$tbname' limit 1");