As it stands today with PHP 5.6, WordPress cannot go above PHPUnit’s version 7.x, with the consequence that test suites cannot be tested against PHP 8.Ĭoding with either PHP 7.3+ (or PHP 7.1+), and then transpiling the code for production, would enable us to upgrade to PHPUnit’s versions 9.x (or 8.x) and modernize the test suites.
That is the case with PHPUnit, the framework for testing. Upgrading the development toolchainĪnother benefit of transpiling is to have access to the newer versions of libraries used for development.
Mac update php to 7.1 install#
This would enable developers to use features from PHP 7.4 for their WordPress themes and plugins while still allowing users running older versions (such as PHP 7.1) to also install their software.
With a transpiling tool for PHP, we could write PHP 7.4 arrow functions and convert them into the equivalent anonymous functions, which can run on any version of PHP starting from 5.3.
Mac update php to 7.1 full#
Click here to see the full demo with network requestsįor instance, Babel converts an ES2015 arrow function to its ES5 equivalent: // Babel Input: ES2015 arrow functionįollowing the lead of ES2015, PHP 7.4 has also introduced arrow functions as syntactic sugar over anonymous functions, which have been supported since PHP 5.3: // PHP 7.4: arrow function Thanks to Babel, developers can use new JavaScript language features to convert their source code into versions of JavaScript that can be executed on older browsers. Is there anything that can be done to improve the situation today? Or do we have to wait three years to be able to use PHP 8 code for our WordPress themes and plugins? (By which time it will have reached its end of life!) Babel shows the wayĪ transpiler is “a type of translator that takes the source code of a program written in a programming language as its input and produces an equivalent source code in the same or a different programming language.”Īn exemplary model for transpiling is Babel, the toolchain that allows us to convert ECMAScript 2015+ code into a backwards-compatible version of JavaScript. So effectively this means that we cannot use PHP 8 syntax in themes/plugins if we want to support all WordPress versions until December 2023, three years after it has been released. This comment by a developer conveys some sense of despair: These numbers make it very difficult to introduce typed properties or union types into the codebase, among other valuable features. However, doing so limits their potential reach.įor instance, only 10.7 percent of installations currently run on PHP 7.4, and we can expect even less will immediately run on PHP 8.0 after being released. Themes and plugins are not bounded by the PHP requirements by WordPress, so they could already require version 7.1 or higher. Whether this fixed schedule is approved or not, the situation looks dire for developers who want to use the latest improvements to PHP.
Under these circumstances, it has been proposed to start having a fixed schedule for upgrading the minimum version, offering a compromise between upgrading to new PHP versions while providing security patches for older versions: Proposed fixed updated schedule. However, it’s been decided to temporarily cancel the PHP version bump, because almost 24 percent of installations still run on either PHP 5.6 or 7.0: September 2020 WordPress usage stats, via /about/stats. In its upcoming new release this December, WordPress should upgrade its minimum required PHP version from 5.6 to 7.1. This concern affects every PHP-based project - whether based on Laravel, Symfony, Drupal, vanilla PHP, or whatnot - but it is particularly pressing for WordPress, and its community is currently attempting to find a solution. Is it possible to introduce it immediately into our projects? Or would we be unable to do it because, for instance, it uses a framework or CMS with legacy code? PHP 8.0 will be released at the end of this year. Transpiling PHP code from 8.0 to 7.x via Rector Leonardo Losoviz Follow Freelance developer and writer, with an ongoing quest to integrate innovative paradigms into existing PHP frameworks, and unify all of them into a single mental model.
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