"MySQL server has gone away" in mysqli
mysql
Solution
There is a mysqli_ping method for this, as well:
https://www.php.net/manual/en/mysqli.ping.php
However, in my experience, ping was not needed. All I had to do was add `mysqli.reconnect = "1"` to my php.ini.
Ref. check if mysql connection is valid
Problem
My web threw the error "MySQL server has gone away". I google it, find a method that use `mysql_ping` function, but I use extension mysqli, not mysql. How can I fix this problem?