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Getting Ready For PHP 7.2
Jenny Wong | @miss_jwo
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Getting Ready For PHP 7.2
Jenny Wong | @miss_jwo
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Getting Ready For PHP 7.3
Jenny Wong | @miss_jwo
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PHP
The primary
programming language that
WordPress is built on.
@miss_jwo #WCNordic
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Current supported
versions of PHP are :
7.1, 7.2 & 7.3
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Supported Versions
http://php.net/supported-versions.php
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Supported Versions
http://php.net/supported-versions.php
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Supported Versions
http://php.net/supported-versions.php
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What PHP versions
are people running
WordPress on?
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What PHP versions are people running WordPress on?
https://wordpress.org/about/stats/
PHP Version
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What PHP versions are people running WordPress on?
https://wordpress.org/about/stats/
@miss_jwo #WCNordic
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What PHP versions are people running WordPress on?
https://wordpress.org/about/stats/
5.2
5.6
7.0
5.5
5.4 5.3
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Do you have
a zombie PHP
on your site?
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https://wordpress.org/plugins/health-check
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WordPress works on all the
latest versions of PHP
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What about custom code?
Plugins & Themes?
&
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• Checks for spelling mistakes
• Does not check that the
sentences make sense
Static Analysers
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Scenario #1
• I’m not a developer/ coder but I want to
check
• Is there going to be too much to do?
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Click & Check!
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WP Engine
Wrapper Plugin
https://wordpress.org/plugins/php-compatibility-checker
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WP Engine
Wrapper Plugin
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WP Engine
Wrapper Plugin
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Working on a project and
want to check as you work
Scenario #2
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Composer &
PHP CompatibilityWP &
WordPress Coding Standards
Tools for your workflow:
(Will also install PHP Coding Standards)
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Where in the workflow?
• Locally
• Before commits are accepted into a repo
• Before code is push to production
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Composer &
PHP Compatibility
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Composer &
PHP Compatibility
Number of files checked
Warning found Skipped file
Error found
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Composer &
PHP Compatibility
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Composer &
PHP Compatibility
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WordPress
Coding Standards
Will tell you about deprecated
functions in WordPress
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Migration Time
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PHP.net manual
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Mirgate
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• Start at your current PHP version
• Use a static analyser
• Check the migration guide for current
PHP Version
• Repeat till at desired PHP version.
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Mirgate
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Caveats
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Some function outputs
have changed
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Runtime errors
will not be detected
by a static analyser
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Upsides
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Better Performance
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Uses less
computing resources
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Fixed PHP bugs
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PHP
security support
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Lots of new functions
and features for
developers to use!
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If you care about keeping
your WordPress up to date,
you should care about
keeping your stack up to
date too.
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Developers &
hosting companies
are your friends
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Plugin Author?
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Set a
minimum PHP version requirement
in plugin readme file
https://make.wordpress.org/plugins/2017/08/29/minimum-php-version-requirement/
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← Minimum requirement
Plugin readme.txt
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Resources
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• WordCamp London 2015: Lorna Jane Mitchell: Get Ready for PHP 5.4+ (video)
• Lorna Jane Mitchell: Get Ready for PHP 5.4+ Slides
• Your hosting providers documentation
• php.net/manual
• https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards/#how-
to-use
• Cloudways How to Upgrade From PHP 5.X to PHP 7 (Cheat Sheet)
• Auth0: Migrating a PHP5 app to PHP7 by Prosper Otemuyiwa (PDF)
• How to Set up Modern PHP Coding Standards for WordPress | Thorsten Frommen
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