scenarios Handling when using PHP 8.1's Fibers with Asynchronous Database Queries
Can someone help me understand I'm wondering if anyone has experience with I'm trying to figure out I tried several approaches but none seem to work. I've been struggling with this for a few days now and could really use some help. I've been struggling with this for a few days now and could really use some help. After trying multiple solutions online, I still can't figure this out... I'm trying to implement asynchronous database queries using Fibers in PHP 8.1, but I'm running into issues when it comes to behavior handling. My code is structured to use a Fiber for executing a database query, but when an exception occurs, it doesn't seem to propagate as expected. Here’s a simplified version of my implementation: ```php use PDO; use Fiber; class Database { private $pdo; public function __construct($dsn, $user, $password) { $this->pdo = new PDO($dsn, $user, $password); } public function fetchData($query) { return $this->pdo->query($query)->fetchAll(PDO::FETCH_ASSOC); } } $fiber = new Fiber(function () { $db = new Database('mysql:host=localhost;dbname=test', 'root', ''); try { $data = $db->fetchData('SELECT * FROM non_existing_table'); } catch (Exception $e) { // This catch block sometimes doesn't fire echo 'Caught exception: ' . $e->getMessage(); } }); $fiber->start(); ``` When I run the above code, I get the following behavior: ``` PDOException: SQLSTATE[42S02]: Base table or view not found: 1146 Table 'test.non_existing_table' doesn't exist ``` However, the catch block doesn’t seem to catch the exception as I expected. I’ve tried adding more specific exception handling logic, but it still doesn't work. If I remove the Fiber and run the database code directly, the behavior is caught properly. Is there something specific about Fibers that affects how exceptions are handled? I want to make sure I'm following best practices with behavior handling in this context, especially since I'm using asynchronous patterns now. Any insights or recommendations would be greatly appreciated! Any ideas what could be causing this? For context: I'm using Php on macOS. Has anyone else encountered this? This is part of a larger API I'm building. How would you solve this? This is part of a larger web app I'm building. What's the best practice here? This is for a desktop app running on Windows 11. This is for a web app running on macOS. I'm working on a service that needs to handle this.