thinkphp implements sequential addition of queues

1. Foreword

With the development of the Internet and the increasing number of applications, task queues have become a very important technology. Through queues, we can process heavy tasks asynchronously, thereby improving application performance and processing efficiency, while also avoiding problems such as blocking of some requests.

In previous applications, we may have used some third-party queue services, such as RabbitMQ, Redis, etc. Of course, these queue services themselves are very mature and very powerful, but they also have some shortcomings, such as requiring additional configuration, installation, maintenance, etc. In some small application scenarios, we may want to quickly implement a simple queue application. In this case, we can consider using one of the PHP frameworks - ThinkPHP.

2. Queue in ThinkPHP

ThinkPHP has integrated the queue function by default, which can be configured in the config.php configuration file. In the framework, you can add queue tasks through the following code:

// 创建队列对象
$queue =     hinkqueueQueue::instance();

// 添加任务到队列
$job = new ppjobTest();
$queue->push($job);

Among them, ppjobTest() is your customized task class. You need to inherit thinkqueueJob and override the handle() method. In the handle() method Add specific business logic.

Adding a task to the queue will not be executed immediately. Instead, the task will be stored in the task queue first and wait for processing by the queue worker process. We can use the following command to start the queue worker process:

php think queue:work

After starting, the queue starts working. It will constantly poll whether there are new tasks in the queue, and if so, it will take out the tasks and execute them.

3. Add sequential tasks

However, what should we do if we want to add tasks in order, that is, we must wait for the previous task to be executed before the next task can be executed? ? At this time, another kind of queue needs to be used-sequential queue.

Sequential queue is a special queue that can ensure that each task is executed in the specified order. In ThinkPHP, you can add a sequential task through the following code:

// 创建队列对象
$queue =     hinkqueueQueue::instance();

// 添加任务到顺序队列
$job1 = new ppjobTest1();
$job2 = new ppjobTest2();
$queue->pushOrder($job1, 'queue1')->pushOrder($job2, 'queue2');

In this example, we added two sequential tasks, Test1 and Test2, which need to be executed in the order of queue queue1 and queue2 . If there is already a task with the same queue name in the queue, the task will be added to the end of the existing queue and wait for execution.

In actual development, we can also perform secondary encapsulation according to needs to use sequential tasks more flexibly.

4. Summary

Through the above introduction, we have learned how to add queue tasks in ThinkPHP, including ordinary tasks and sequential tasks. Sequential tasks can ensure that tasks are processed in the specified order, which is especially suitable for tasks that require sequential order. In actual applications, we choose the appropriate method according to our own needs to improve the performance and processing efficiency of the application.

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