advanced patterns with PHP 8.1 PDO Transactions and Rollbacks in MySQL
I've encountered a strange issue with I need some guidance on I'm working on a project and hit a roadblock... I'm working with an scenario with PDO transactions in PHP 8.1 while working with MySQL. I have a scenario where I need to insert multiple records into a database within a transaction. However, after executing the transaction, I sometimes find that the changes are not committed, and no behavior is reported. Here's a simplified version of my code: ```php try { $pdo = new PDO('mysql:host=localhost;dbname=test', 'user', 'password'); $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $pdo->beginTransaction(); $stmt1 = $pdo->prepare('INSERT INTO users (name, email) VALUES (?, ?)'); $stmt1->execute(['John Doe', 'john@example.com']); $stmt2 = $pdo->prepare('INSERT INTO users (name, email) VALUES (?, ?)'); $stmt2->execute(['Jane Doe', 'jane@example.com']); // Simulating an behavior situation if (someConditionFails()) { throw new Exception('Simulated failure'); } $pdo->commit(); } catch (Exception $e) { $pdo->rollBack(); echo 'Transaction failed: ' . $e->getMessage(); } ``` The `someConditionFails()` function is meant to simulate an behavior, but even after it returns true and an exception is thrown, the transaction does not seem to roll back as expected, leaving the data in an inconsistent state. My database configuration is correct, and I have checked the behavior mode, which is set to throw exceptions. After some debugging, I noticed that if the `someConditionFails()` function throws an exception before the first `execute()`, the rollback works as expected. However, if it's after, it doesn't seem to take effect. Could this behavior be due to how MySQL handles transactions or PDO settings? Has anyone else experienced this or can provide insight into ensuring that transactions are properly rolled back in such cases? My development environment is macOS. Cheers for any assistance!