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Where is the error?
The machine said that:
You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'WHERE 'id'='9'' at line 8


I know the session is the problem, but I do not know why. How do you change to be good?

The session[user][id] is working for a SELECT operation, but not the update.

What I have tried:

<pre lang="PHP">
                    $sql = "UPDATE `userzoli` SET 
                    `fullname`='$first_name',
                    `email`='$email',
                    `street`='$street',
                    `nr`='$nr',
                    `city`='$city',
                    `zip`='$zip',
                    WHERE 'id'='" . $_SESSION['user']['id'] . "'  ";
Posted
Updated 1-Aug-22 4:46am
v4
Comments
Richard MacCutchan 1-Aug-22 9:08am    
The error message is telling you that $_SESSION['user']['id'] returns an empty string.
folza 1-Aug-22 9:14am    
It gets id not that is the problem. What could be the problem? Do you see a syntax problem?
Richard MacCutchan 1-Aug-22 9:37am    
Well you have changed the question now, so if the id is 9 then the WHERE clause will be:
WHERE 'id'='9'

I think you need a terminating semi-colon on your SQL statement, so it should be:
WHERE 'id'='" . $_SESSION['user']['id'] . "';";

1 solution

You're using apostrophes around a column name and MySQL doesn't support that. For column names you need to either use no quotations, or a backtick (`) symbol:
WHERE 'id'= <-- wrong

WHERE id=   <-- okay

WHERE `id`= <-- okay

But you also shouldn't be using string interpolation in your queries, you're opening yourself up to SQL injection attacks. Consider using PHP: mysqli_stmt::bind_param - Manual[^]
 
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Comments
CHill60 1-Aug-22 10:49am    
Good spot! 5'd

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