Question

How do I resolve the following error?

Fatal error: Call to a member function fetch_assoc() on a non-object
in index.php on line 27 Call Stack: 0.0000 644064 1. {main}()
index.php:0

This is the code I’m running so far:

$sql = 'SELECT * FROM pm_user WHERE name='.$_SESSION['pmname'].'';
$result = $pdo->query($sql);
$row = $result->fetch_assoc(); // line 27
echo $row['img'];

Thanks in advance

Answer 1

The problems are:

• You are interpolating a value inside of your query.
  This is bad and wrong. You should use PDO’s prepared statements feature instead.

• In the process of doing this bad and wrong interpolation, you forgot to add string quotations, making your SQL query invalid.

• You failed to do any error checking whatsoever on ->query(); when query() fails, it returns FALSE and thus you tried to perform ->fetch() on FALSE.

Fix all these things.