linux - php queue, how to design scheduled tasks?

Question

php queue, how to design scheduled tasks?

Answer 1

1. Use the open source MQ message queue software (lightweight recommended)
2. Use MySQL+crontab to implement it yourself
3. The redis list can also be implemented

Answer 2

crontab

Answer 3

You can write one that always runs in the background

while(true){
    // 业务处理代码
    sleep($time)
}

You can control time through $time.

Answer 4

Please describe the problem clearly. What application scenarios do you need to use resident processes?