PHP 8.1 - implementing PDO prepared statements and default fetch mode optimization guide as expected
I'm not sure how to approach After trying multiple solutions online, I still can't figure this out. I'm currently using PHP 8.1 with a MySQL database and I've encountered a puzzling scenario with PDO prepared statements. I expect that when I set the fetch mode to `PDO::FETCH_ASSOC`, it should return an associative array, but sometimes I'm getting an indexed array instead, especially when I'm dealing with multiple queries in a single execution. Here's a sample of what I have: ```php $dsn = 'mysql:host=localhost;dbname=testdb'; $username = 'root'; $password = ''; try { $pdo = new PDO($dsn, $username, $password); $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC); $stmt = $pdo->prepare('SELECT * FROM users'); $stmt->execute(); $result = $stmt->fetchAll(); // Should return associative array var_dump($result); } catch (PDOException $e) { echo 'Connection failed: ' . $e->getMessage(); } ``` Despite setting the default fetch mode, I'm seeing instances where `$result` is returning an indexed array instead. I've tried explicitly setting the fetch mode in the `fetchAll` method: ```php $result = $stmt->fetchAll(PDO::FETCH_ASSOC); ``` This works, but it feels redundant since I already set the default fetch mode. Is there something I'm missing? Could this behavior be related to the way PDO handles multiple result sets? I've also tried checking if there are any previous queries affecting the fetch mode, but I haven't found anything conclusive. Any insights into this would be appreciated! I'm working on a CLI tool that needs to handle this. This is for a desktop app running on Ubuntu 22.04. Any ideas what could be causing this? This issue appeared after updating to Php stable. Could someone point me to the right documentation?