It can be done locally, but not after ubuntu?

mysqli_fetch_array() expects parameter 1 to be mysqli_result, boolean

it is OK on the local side, but such an error occurs after ubuntu
my local side and ubuntu both install php7
. The difference is that it is possible that I am 7.2.2 ubuntu is 7, but does it matter?

Mar.05,2021

does the php of ubuntu perform php-fpm snooping? You can try to visit html first. If html doesn't work, you should consider the nginx/apache problem. You can see whether error_log, and hosts have added domain names. Finally, you find that if html can php, you can't see if php-fpm is running. Search

with grep.
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b36f29-405e0.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b36f29-405e0.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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