How to get single element from $row[id]

Question

I'm working on a project for PHPBB. I have a problem that I get some $row types. And they have some "id"s from MySQL, But I want theese "id"s by one by.

It's SQL query ;

$sql = $db->sql_build_query('SELECT', array(
    'SELECT'    => 'u.*, z.friend, z.foe, p.*',

    'FROM'      => array(
        USERS_TABLE     => 'u',
        POSTS_TABLE     => 'p',
    ),

    'LEFT_JOIN' => array(
        array(
            'FROM'  => array(ZEBRA_TABLE => 'z'),
            'ON'    => 'z.user_id = ' . $user->data['user_id'] . ' AND z.zebra_id = p.poster_id'
        )
    ),

    'WHERE'     => $db->sql_in_set('p.post_id', $post_list) . '
        AND u.user_id = p.poster_id'
));

$result = $db->sql_query($sql);

And then for user_id's

$rowset[$row['post_id']] = array(
        'hide_post'         => ($row['foe'] && ($view != 'show' || $post_id != $row['post_id'])) ? true : false,

        'user_id'           => $row['user_id'],
.
.

I logged $row[user_id] for in a topic and it return ;

• 97777
• 97778
• 97779
• 97783

But I want just first id i mean -> "97777" . So how can i pass just "97777" to a variable?

Dont suggest about sql level because I can't change any SQL command.

Answer 1

Dont suggest about sql level because I can't change any SQL command.

This is the problem though, your PHP is clearly selecting all 9 rows;

Using WHERE user_id = '97777' you will only select the record you want.

Why can you not edit the SQL? aren't you familiar with SQL or is the code your are using your own?

Answer 2

Without any code it is hard to say what you want to do:

reset($row);
$first_key = key($row);

or

reset($rows);
$first_key = key($rows);

Hard to guess without seeing any code.

Answer 3

You can limit your records using LIMIT clause.

SELECT column_name FROM table_name LIMIT 1;

It will return the first record of that table.