PHPの最新版「8.0.0」が正式リリースされました。 PHP 8.0 is a major update of the PHP language. It contains many new features and optimizations including named arguments, union types, attributes, constructor property promotion, match expression, nullsafe operator, JIT, and improvements in the type system, error handling, and consistency. https://www.php.net/releases/8.0/en.phpJITによりPHP7に比べ高速化されているPHP8.0.0は実行時のコンパイラJIT