My mysql record does not want to update!

Question

1.00/5 (1 vote)

See more:

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 1-Aug-22 2:59am

folza

Updated 1-Aug-22 3:46am

v4

Add a Solution

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

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Chris Copeland · Accepted Answer · 2022-08-01T03:46:00

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[^]