select count(*) as MyCount from (select *,(select title from sl_zh_class where id=A.cid1) as cname from sl_zh_biogas A where cid1=15 order by id desc) MyTempTable<br />
<b>Fatal error</b>:  Exception thrown without a stack frame in <b>Unknown</b> on line <b>0</b><br />
<br />
<b>Warning</b>:  Unknown: open(/tmp/sess_dc678dfb944be2dec010b35fbe13a12f, O_RDWR) failed: No space left on device (28) in <b>Unknown</b> on line <b>0</b><br />
<br />
<b>Warning</b>:  Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct () in <b>Unknown</b> on line <b>0</b><br />