Get value from table… PHP/MySQL

Question

I have the following that returns data from my table...

    $query = dbConnect()->prepare("SELECT * FROM users a INNER JOIN actions b ON a.id = b.user_id WHERE a.id=:user_id");
    $query->bindParam(':user_id', $_SESSION['user_id']);
    $query->execute();


    if($row = $query->fetchAll()){
        $row['id'] = $_SESSION['user_id'];
    }

I want to print out every value in my 'check_id' column for the currently logged in user...

I've tried...

 if($row = $query->fetchAll()){
        $row['id'] = $_SESSION['user_id'];
        $checkValue = $row['check_id'];
    }

Only i receive...

Notice: Undefined index: check_id in /home/index.php on line 24

Printing the array shows my check_id value...

Answer 1

You need to;

• Fetch all the results
• Iterate through your result set

$arrResults = $query->fetchAll();
foreach($arrResults as $result) {
   echo $result['user_id'] . PHP_EOL;
}

Answer 2

To debug use print_r

if($row = $query->fetchAll()){
    print_r($row);
}