it"s wrong for me to use varchar to read it out, so what should I use?
problem description
the varvhar that saves $connection- > id to mysql is a simple number that can no longer be used.
the environmental background of the problems and what methods you have tried
related codes
/ / Please paste the code text below (do not replace the code with pictures)
"insert into Connection values ("$CabinetId","$deviceid","$datetime","$ConnId")";
what result do you expect? What is the error message actually seen?
it is hoped that the read id data can be used to use