Wordpress 5.9 beta 15/17/2023 Often, however, tooling can be ready to go by the time the final release is ready because development work has happened based on alpha, beta, and release candidate releases that have been made available ahead of time. While PHP is continuously being developed there can be a lag time before the full ecosystem around a new version is available. PHP development tools such as Composer, PHPUnit, PHP_CodeSniffer, PHPStan, Xdebug, and various IDEs all need to recognise the new syntaxes of a new version of PHP. Whenever a new version of PHP is released that includes new syntax, it takes time for the new syntaxes to be supported throughout the PHP and WordPress communities. Proliferation of support throughout the PHP and WordPress communities So while you can call your own custom functions with named parameters, you shouldn’t call WordPress functions, as the parameter names may change without warning in the future. However, it’s worth noting WordPress core does not claim compatibility with this feature. Simplify code such as allowing ::class on objects, trailing comma in parameter lists, str_contains(), str_starts_with(), and str_ends_with() functions, throw expression, attributes.Reduce the amount of code you have to maintain, for example, nullsafe operator, constructor property promotion, match operator, and non-capturing catches.Make it easier to write strictly-typed code, for example, union types, static and mixed types, Stringable interface, and changes in the handling of numbers.PHP 8.0 was designed to 1) fix edge cases and inconsistencies to make PHP a more solid and predictable scripting language, and 2) provide new features to improve the language overall. After that date, an organization will need to upgrade to PHP 8.1, a minor release requiring a much smaller change. The good news is once organizations move to PHP 8.0 they will receive security support from the core PHP project until November 2023. Specifically, there were 49 breaking changes to core PHP, and 169 throughout PHP 8 overall, including in libraries and extensions that your code may rely on. This makes the switch from PHP 7.4 to PHP 8.0 trickier than, for example, the change from PHP 7.3 to PHP 7.4. However, as a major version, it does contain several breaking changes. Most developers will find substantial benefits in PHP 8.0. Released in November 2020, PHP 8.0 provided several enhancements and features that made new code (and shorter code) more resilient against bugs. Enable PHP 8 on your WordPress VIP applications.Check the VIP Code Analysis Bot on pull requests.How to get started with PHP 8.0 on WordPress VIP. Use PHPStan/Psalm or another static analysis tool.Address known PHP Warnings that are PHP fatal errors under PHP 8.0.Use PHP_CodeSniffer with the PHPCompatibility standard.How to find PHP 8.0 compatibility issues.Proliferation of support throughout the PHP and WordPress communities.What follows is a description of the changes, and the steps that both our customers and others using WordPress on other platforms can do to prepare. For this reason, the WordPress VIP platform will be moving all of our customer applications to run on PHP 8.0. However, as PHP 7.4 comes to the end of its security support in November 2022, WordPress sites will need to upgrade to maintain strong security. Most recently, PHP 7.4 has been the default version of PHP on the WordPress VIP Platform. WordPress sites require PHP, and as PHP has evolved, WordPress has kept up.
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