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Informations about the package task-queue
TaskQueue
A lightweight PHP task queue built on top of PDO.
Supports scheduled execution, retries, task expiration, indexed task types, automatic deletion of completed tasks, and optional process-level locking via LockGuard.
📦 Installation
📋 Requirements
- PHP: >= 8.2
- Extensions:
ext-json- for JSON payload handlingext-pdo- for database operationsext-posix- for LockGuard process locking (optional)
This package uses standard PHP extensions and has minimal external dependencies. No external database libraries required - works with any PDO-compatible database (MySQL, PostgreSQL, SQLite, etc.).
⚙️ Setup
🚀 Usage
Add a task:
Process all tasks:
Process only specific type:
🔒 Using LockGuard (optional)
🧰 Features
- Task Retries – Configurable max retry attempts before marking as failed
- Task Expiration – Automatic expiration via
expires_attimestamp - Indexed Task Types – Fast filtering by
payload_type - Row-Level Locking – Prevents concurrent execution of the same task
- Transactional Safety – All task operations are executed within a transaction
- Optional Process Locking – Prevent overlapping workers using
LockGuard - Optional Deletion on Success – Set
deleteOnSuccess: trueto automatically delete tasks after success
🔗 Integration with Event-Dispatcher
TaskQueue implements TaskQueueInterface and can be used as an async queue backend for SoloPHP Event-Dispatcher. The Event-Dispatcher library should contain a TaskQueueAdapter in its adapter collection that implements the integration.
For async event processing setup, refer to the Event-Dispatcher documentation.
🧪 API Methods
| Method | Description |
|---|---|
install() |
Create the tasks table |
addTask(string $name, array $payload, ?DateTimeImmutable $scheduledAt = null, ?DateTimeImmutable $expiresAt = null) |
Add task to the queue (default schedule: now) |
getPendingTasks(int $limit = 10, ?string $onlyType = null) |
Retrieve ready-to-run tasks, optionally filtered by type |
markCompleted(int $taskId) |
Mark task as completed |
markFailed(int $taskId, string $error = '') |
Mark task as failed with error message |
processPendingTasks(callable $callback, int $limit = 10, ?string $onlyType = null) |
Process pending tasks with a custom handler |
🧪 Testing
📄 License
This project is open-sourced under the MIT license.
All versions of task-queue with dependencies
ext-json Version *
ext-pdo Version *
ext-posix Version *