object(mysqli)#10 (18) {
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  ["client_version"]=>
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  int(0)
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  string(26) "MySQL server has gone away"
  ["error_list"]=>
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  string(10) "5.7.40-log"
  ["server_version"]=>
  int(50740)
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  ["protocol_version"]=>
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object(mysqli)#10 (18) {
  ["affected_rows"]=>
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<div style="font-size:12px;text-align:left; border:1px solid #9cc9e0; padding:1px 4px;color:#000000;font-family:Arial, Helvetica,sans-serif;"><span><b>MySQL Query : </b> SELECT * FROM `hsdzys_com`.`v9_download` WHERE `catid` = '17' AND `id`<'72166' AND `status`=99 ORDER BY id DESC LIMIT 1 <br /><b> MySQL Error : </b> <br /> <b>MySQL Errno : </b>2006 <br /><b> Message : </b> MySQL server has gone away <br /><a href='http://faq.phpcms.cn/?errno=2006&msg=' target='_blank' style='color:red'>Need Help?</a></span></div>