I am trying to upgrade the script from mysql to mysqli but this is the error that has been beating me up please help...

The code:

$theValue

mysqli_real_escape_string($db, $theValue);

The $db variable is the reference to the mysqli object.

I.e $db = new mysqli();

Gerrit?

BTW, are you a New Yorker?

Karleb:
mysqli_real_escape_string($db, $theValue);

The $db variable is the reference to the mysqli object.

I.e $db = new mysqli();

Gerrit?

BTW, are you a New Yorker?

Yes got it, thanks a lot.

NY? That's VPN , I'm in Abidjan

You are just about to write another vulnerable code.
Use PDO instead

Xperienx:
You are just about to write another vulnerable code.
Use PDO instead

Yeah I already fixed it, code is okay, used MySQL and just downgraded my php version. That solves it