PHP 8 Support in Magento2

1. Magento 2 and PHP 8
Sergii Ivashchenko | Community Engineering

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©2020 Adobe. All Rights Reserved. Adobe Confidential.
PHP releases and support
Released every
year
2 Years of active
support
1 year of security
support
7.3 EOL in 9 months
7.4 EOL in 21 months
8.1 release expected this
autumn

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©2020 Adobe. All Rights Reserved. Adobe Confidential.
Features

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©2020 Adobe. All Rights Reserved. Adobe Confidential.
Features awaited by Magento community
Union types
JIT
Nullsafe operator
Attributes
Constructor property
promotion

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©2020 Adobe. All Rights Reserved. Adobe Confidential.
Backward incompatible changes

6. Migrating to PHP 8

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©2020 Adobe. All Rights Reserved. Adobe Confidential.
Process
Dependencie
s
Codebase
Infrastructure
Extensions

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©2020 Adobe. All Rights Reserved. Adobe Confidential.
Dependencies
Compatible, 32
To be updated, 23
Pending compatible
version, 12

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©2020 Adobe. All Rights Reserved. Adobe Confidential.
Dependencies update challenges
 Backward incompatibility
 Limited PHP versions compatibility
 Changes cannot be tested on target PHP version
 Cross dependency + limited compatibility
 composer.lock conflicts
 Stale projects

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©2020 Adobe. All Rights Reserved. Adobe Confidential.
Dependencies update tips
 Use dependency migration guide
 GitHub dependency graph
 Composer dependency tree

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©2020 Adobe. All Rights Reserved. Adobe Confidential.
Codebase
 Until all dependencies
are updated
 Project can be installed
on a new PHP version
 Project and extensions can
be installed on a new PHP
version
Static testing Project testing Integration testing

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©2020 Adobe. All Rights Reserved. Adobe Confidential.
Codebase update challenges
 Static tests availability
 Cannot be fully tested until dependencies are updated

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©2020 Adobe. All Rights Reserved. Adobe Confidential.
Codebase update tips
 Use PHP migration guide
 Use dev version of static tests if stable is not available
 Community is facing and resolving the same problems

14. PHP 8 Compatibility Project

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©2020 Adobe. All Rights Reserved. Adobe Confidential.
Project
 php8-develop branch from 2.4-develop
 Compatible with PHP 7.3, 7.4 and soon 8.0

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©2020 Adobe. All Rights Reserved. Adobe Confidential.
Documentation
 Project page on Magento 2 repository Wiki
 Blog posts on Magento DevBlog

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©2020 Adobe. All Rights Reserved. Adobe Confidential.
Backlog

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©2020 Adobe. All Rights Reserved. Adobe Confidential.
Involved community contributors and maintainers
Alexander Shkurko Sergey Nezbritskiy Vladyslav Medvediev Vitaliy Prokopov
Ihor Sviziev Shankar Konar Pieter Hoste Tu Nguyen

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©2020 Adobe. All Rights Reserved. Adobe Confidential.
Involved contribution partners

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©2020 Adobe. All Rights Reserved. Adobe Confidential.
Share your vision!