need to test if sql query was successful

Question

I have this query and if it returns successful, I want another function to process, if not, do not process that function.

Here is the code for running the query

Answer 1

if you're not using the -> format, you can do this:

$a = "SQL command...";
if ($b = mysqli_query($con,$a)) {
  // results was successful
} else {
  // result was not successful
}