Q:

I can't update a SQL table with right concatenation

Could you help me to concatenate in a good way ? I tried but I wasn't able to make it!
Here's my code :
include('config.php');

$base="recettes";

$sql="INSERT INTO". $base." (username, titre)  SELECT '$username', '$output[0]' ";
$request = mysqli_query($con,$sql);

Thank you!

A:

About the concatenation... You're missing a space behind INTO and before ($username
When I have a query error, I always echo the query to see what it looks like. 

