Asynchronous tasks in PHP

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   Making asynchronous tasks in PHP

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   Olivier Dolbeau @odolbeau Web Architect About me

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   RIDESHARING Cost of motoring 100€ 25€ 25€ 25€ 25€ @BlaBlaCar_FR

   ALONE
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   A fast growing community

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   A European phenomenon

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    Your visitors don’t want to wait! and if they have

    to, they don’t want to know it
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    For you :

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    Your web servers want to make their job! (they don’t

    care about emails other boring tasks)
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    Separating concerns Serveur web Consumer Consumer Consumer Consumer Consumer

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    Separating concerns

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    How Rabbit work?

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    With more consumers

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    You can add simple routing logic

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    Or more complex logic

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    How your app talks to RabbitMQ?

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    With the PECL extension Thanks to Pieter de Zwart See:

    pdezwart/php-amqp Use librabbitmq (alanxz/rabbitmq-c)
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    How to connect to RabbitMQ?

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    How to publish a message?

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    How to consume a message?

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    It’s a trap !

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    get > consume • consume is a blocking call •

    you don’t want blocking calls in your application ! • Use “get” method with a poll-interval
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    Wait 30 seconds and retry!

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    Wait 3 minutes and retry!

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    Wait half an hour and retry!

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    Swarrot

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    Existing processors

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    Last tip !

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    Making asynchronous tasks is good (even in PHP)

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    @odolbeau https://joind.in/ 11237 https://github.com/swarrot/swarrot https://speakerdeck.com/odolbeau/asynchronous-tasks-in-php