advanced patterns with PHP 8.2 and PDO::fetchAll() when fetching large datasets
I've hit a wall trying to I've been banging my head against this for hours. Hey everyone, I'm running into an issue that's driving me crazy. I'm experiencing issues while trying to fetch a large dataset using PDO in PHP 8.2. When I execute the following query, I expect to retrieve all the records from my database, but it seems like I'm only getting a partial result set. Here’s how I’m currently doing it: ```php try { $pdo = new PDO('mysql:host=localhost;dbname=my_database', 'username', 'password'); $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $stmt = $pdo->prepare('SELECT * FROM large_table'); $stmt->execute(); $results = $stmt->fetchAll(PDO::FETCH_ASSOC); echo 'Rows fetched: ' . count($results); } catch (PDOException $e) { echo 'Connection failed: ' . $e->getMessage(); } ``` When I run this code, I get an output like `Rows fetched: 500`, but my `large_table` contains over 2000 records. I’ve checked my database connection, and it’s working fine. I also tried changing the fetch mode to `PDO::FETCH_NUM`, but the scenario continues. I suspect this has something to do with how PHP is handling memory for large datasets or perhaps a configuration limit. I’ve also reviewed the PHP configuration and noticed that `memory_limit` is set to 128M, which should be sufficient for my use case. However, the `max_execution_time` is set to 30 seconds. Could this time limit be causing the fetch to be cut off? I’d appreciate any insights into how I might resolve this scenario or if there are better practices for handling large datasets with PDO in PHP 8.2. This is part of a larger CLI tool I'm building. What's the best practice here? What am I doing wrong? What's the best practice here?