Updating MySQL DB with PHP - php

Question

I'm using foreach to loop an array and update a MySQL database.
This is my code
foreach($result['getHiscore'] as $highScoreType => $highScoreValues){
$rank = $highScoreValues['rank'];
$lvl = $highScoreValues['lvl'];
$totalXp = $highScoreValues['totalxp'];
mysqli_query($con,"UPDATE Users SET Level("$highScoreType") = $lvl, Xp("$highScoreType") = $totalXp,
WHERE UserID= '1'");
}
i'm trying to conflate the word "level" with the contents of $highScoreType, the column titles in my DB are Leveloverall, Xpoverall, Levelattack, Xpattack and so on so i was planning on keeping the Level/Xp title constant and just changing the key.
This looks fine to me and when i tested the sql with pre-set values it updated fine, however using the variables doesn't update at all. I know that the variables are coming out of the array correctly as when i echo them inline with the foreach they print out in the correct format and order.
Is it my formatting thats the issue or am i doing missing something else?

Answer 1

If you echo the generated SQL query that should help you see any problems in the query.
It looks odd to me: UPDATE Users SET Level("$highScoreType") = $lvl
Shouldn't that just be UPDATE Users SET $highScoreType = $lvl ?
Be aware also that this sort of code is vulnerably to SQL injection attacks so always be wary of what could be in those variables.
To print the query do:
$query = "UPDATE Users SET Level("$highScoreType") = $lvl, Xp("$highScoreType") = $totalXp, WHERE UserID= '1'"
echo $query
mysqli_query($con, $query)