If you’re comfortable with the command line, the PHPCompatibility for PHP CodeSniffer is a helpful tool for identifying some code that needs to change (it doesn’t quite find everything, yet). We strongly encourage you to test any new PHP version in another environment before changing it on your live site. PHP version selection is available to all Business and Ecommerce sites with hosting features activated. This can greatly improve the speed of WordPress sites, especially those with complex plugins and themes. This allows PHP to compile code at runtime, rather than before execution, resulting in faster performance and reduced memory usage. If you haven’t upgraded from PHP 7.4 just yet, one of the most notable features in PHP 8 is the addition of JIT (Just-in-Time) compilation. mb_convert_encoding() is recommended as the primary replacement.Ĭheck out the RFCs for the full breadth of changes in PHP 8.2, including readonly classes and constants in traits.
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